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https://github.com/exacti/phacil-framework
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1531 lines
54 KiB
1531 lines
54 KiB
<?php
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/**
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* Copyright © 2021 ExacTI Technology Solutions. All rights reserved.
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* GPLv3 General License.
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* https://exacti.com.br
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* Phacil PHP Framework - https://github.com/exacti/phacil-framework
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* @author Colin Mollenhour <colin@mollenhour.com>
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* @copyright Modified by ExacTI based on https://github.com/colinmollenhour/credis
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*/
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namespace Phacil\Framework;
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//class_alias('\\Phacil\\Framework\\Credis_Client', '\\Phacil\\Framework\\Credis');
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/** @package Phacil\Framework */
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class Credis extends Credis_Client
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{}
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/**
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* Credis_Client (a fork of Redisent)
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*
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* Most commands are compatible with phpredis library:
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* - use "pipeline()" to start a pipeline of commands instead of multi(Redis::PIPELINE)
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* - any arrays passed as arguments will be flattened automatically
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* - setOption and getOption are not supported in standalone mode
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* - order of arguments follows redis-cli instead of phpredis where they differ (lrem)
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*
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* - Uses phpredis library if extension is installed for better performance.
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* - Establishes connection lazily.
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* - Supports tcp and unix sockets.
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* - Reconnects automatically unless a watch or transaction is in progress.
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* - Can set automatic retry connection attempts for iffy Redis connections.
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*
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* @author Colin Mollenhour <colin@mollenhour.com>
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* @copyright 2011 Colin Mollenhour <colin@mollenhour.com>
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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* @package Credis_Client
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*/
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if( ! defined('CRLF')) define('CRLF', sprintf('%s%s', chr(13), chr(10)));
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/**
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* Credis-specific errors, wraps native Redis errors
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*/
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class CredisException extends Exception
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{
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const CODE_TIMED_OUT = 1;
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const CODE_DISCONNECTED = 2;
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public function __construct($message, $code = 0, $exception = NULL)
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{
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if ($exception && get_class($exception) == 'RedisException' && strpos($message,'read error on connection') === 0) {
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$code = CredisException::CODE_DISCONNECTED;
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}
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parent::__construct($message, $code, $exception);
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}
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}
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/**
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* Credis_Client, a lightweight Redis PHP standalone client and phpredis wrapper
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*
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* Server/Connection:
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* @method Credis_Client pipeline()
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* @method Credis_Client multi()
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* @method Credis_Client watch(string ...$keys)
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* @method Credis_Client unwatch()
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* @method array exec()
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* @method string|Credis_Client flushAll()
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* @method string|Credis_Client flushDb()
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* @method array|Credis_Client info(string $section = null)
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* @method bool|array|Credis_Client config(string $setGet, string $key, string $value = null)
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* @method array|Credis_Client role()
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* @method array|Credis_Client time()
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* @method int|Credis_Client dbsize()
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*
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* Keys:
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* @method int|Credis_Client del(string $key)
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* @method int|Credis_Client exists(string $key)
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* @method int|Credis_Client expire(string $key, int $seconds)
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* @method int|Credis_Client expireAt(string $key, int $timestamp)
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* @method array|Credis_Client keys(string $key)
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* @method int|Credis_Client persist(string $key)
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* @method bool|Credis_Client rename(string $key, string $newKey)
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* @method bool|Credis_Client renameNx(string $key, string $newKey)
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* @method array|Credis_Client sort(string $key, string $arg1, string $valueN = null)
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* @method int|Credis_Client ttl(string $key)
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* @method string|Credis_Client type(string $key)
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*
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* Scalars:
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* @method int|Credis_Client append(string $key, string $value)
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* @method int|Credis_Client decr(string $key)
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* @method int|Credis_Client decrBy(string $key, int $decrement)
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* @method bool|string|Credis_Client get(string $key)
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* @method int|Credis_Client getBit(string $key, int $offset)
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* @method string|Credis_Client getRange(string $key, int $start, int $end)
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* @method string|Credis_Client getSet(string $key, string $value)
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* @method int|Credis_Client incr(string $key)
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* @method int|Credis_Client incrBy(string $key, int $decrement)
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* @method array|Credis_Client mGet(array $keys)
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* @method bool|Credis_Client mSet(array $keysValues)
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* @method int|Credis_Client mSetNx(array $keysValues)
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* @method bool|Credis_Client set(string $key, string $value, int | array $options = null)
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* @method int|Credis_Client setBit(string $key, int $offset, int $value)
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* @method bool|Credis_Client setEx(string $key, int $seconds, string $value)
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* @method int|Credis_Client setNx(string $key, string $value)
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* @method int |Credis_Client setRange(string $key, int $offset, int $value)
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* @method int|Credis_Client strLen(string $key)
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*
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* Sets:
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* @method int|Credis_Client sAdd(string $key, mixed $value, string $valueN = null)
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* @method int|Credis_Client sRem(string $key, mixed $value, string $valueN = null)
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* @method array|Credis_Client sMembers(string $key)
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* @method array|Credis_Client sUnion(mixed $keyOrArray, string $valueN = null)
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* @method array|Credis_Client sInter(mixed $keyOrArray, string $valueN = null)
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* @method array |Credis_Client sDiff(mixed $keyOrArray, string $valueN = null)
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* @method string|Credis_Client sPop(string $key)
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* @method int|Credis_Client sCard(string $key)
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* @method int|Credis_Client sIsMember(string $key, string $member)
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* @method int|Credis_Client sMove(string $source, string $dest, string $member)
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* @method string|array|Credis_Client sRandMember(string $key, int $count = null)
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* @method int|Credis_Client sUnionStore(string $dest, string $key1, string $key2 = null)
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* @method int|Credis_Client sInterStore(string $dest, string $key1, string $key2 = null)
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* @method int|Credis_Client sDiffStore(string $dest, string $key1, string $key2 = null)
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*
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* Hashes:
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* @method bool|int|Credis_Client hSet(string $key, string $field, string $value)
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* @method bool|Credis_Client hSetNx(string $key, string $field, string $value)
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* @method bool|string|Credis_Client hGet(string $key, string $field)
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* @method bool|int|Credis_Client hLen(string $key)
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* @method bool|Credis_Client hDel(string $key, string $field)
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* @method array|Credis_Client hKeys(string $key, string $field)
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* @method array|Credis_Client hVals(string $key)
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* @method array|Credis_Client hGetAll(string $key)
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* @method bool|Credis_Client hExists(string $key, string $field)
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* @method int|Credis_Client hIncrBy(string $key, string $field, int $value)
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* @method float|Credis_Client hIncrByFloat(string $key, string $member, float $value)
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* @method bool|Credis_Client hMSet(string $key, array $keysValues)
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* @method array|Credis_Client hMGet(string $key, array $fields)
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*
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* Lists:
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* @method array|null|Credis_Client blPop(string $keyN, int $timeout)
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* @method array|null|Credis_Client brPop(string $keyN, int $timeout)
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* @method array|null |Credis_Client brPoplPush(string $source, string $destination, int $timeout)
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* @method string|null|Credis_Client lIndex(string $key, int $index)
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* @method int|Credis_Client lInsert(string $key, string $beforeAfter, string $pivot, string $value)
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* @method int|Credis_Client lLen(string $key)
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* @method string|null|Credis_Client lPop(string $key)
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* @method int|Credis_Client lPush(string $key, mixed $value, mixed $valueN = null)
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* @method int|Credis_Client lPushX(string $key, mixed $value)
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* @method array|Credis_Client lRange(string $key, int $start, int $stop)
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* @method int|Credis_Client lRem(string $key, int $count, mixed $value)
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* @method bool|Credis_Client lSet(string $key, int $index, mixed $value)
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* @method bool|Credis_Client lTrim(string $key, int $start, int $stop)
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* @method string|null|Credis_Client rPop(string $key)
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* @method string|null|Credis_Client rPoplPush(string $source, string $destination)
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* @method int|Credis_Client rPush(string $key, mixed $value, mixed $valueN = null)
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* @method int |Credis_Client rPushX(string $key, mixed $value)
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*
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* Sorted Sets:
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* @method int|Credis_Client zAdd(string $key, double $score, string $value)
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* @method int|Credis_Client zCard(string $key)
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* @method int|Credis_Client zSize(string $key)
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* @method int|Credis_Client zCount(string $key, mixed $start, mixed $stop)
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* @method int|Credis_Client zIncrBy(string $key, double $value, string $member)
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* @method array|Credis_Client zRangeByScore(string $key, mixed $start, mixed $stop, array $args = null)
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* @method array|Credis_Client zRevRangeByScore(string $key, mixed $start, mixed $stop, array $args = null)
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* @method int|Credis_Client zRemRangeByScore(string $key, mixed $start, mixed $stop)
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* @method array|Credis_Client zRange(string $key, mixed $start, mixed $stop, array $args = null)
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* @method array|Credis_Client zRevRange(string $key, mixed $start, mixed $stop, array $args = null)
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* @method int|Credis_Client zRank(string $key, string $member)
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* @method int|Credis_Client zRevRank(string $key, string $member)
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* @method int|Credis_Client zRem(string $key, string $member)
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* @method int|Credis_Client zDelete(string $key, string $member)
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* TODO
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*
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* Pub/Sub
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* @method int |Credis_Client publish(string $channel, string $message)
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* @method int|array|Credis_Client pubsub(string $subCommand, $arg = null)
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*
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* Scripting:
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* @method string|int|Credis_Client script(string $command, string $arg1 = null)
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* @method string|int|array|bool|Credis_Client eval(string $script, array $keys = null, array $args = null)
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* @method string|int|array|bool|Credis_Client evalSha(string $script, array $keys = null, array $args = null)
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*/
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class Credis_Client {
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const VERSION = '1.11.4';
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const TYPE_STRING = 'string';
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const TYPE_LIST = 'list';
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const TYPE_SET = 'set';
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const TYPE_ZSET = 'zset';
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const TYPE_HASH = 'hash';
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const TYPE_NONE = 'none';
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const FREAD_BLOCK_SIZE = 8192;
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/**
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* Socket connection to the Redis server or Redis library instance
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* @var resource|\Redis
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*/
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protected $redis;
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protected $redisMulti;
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/**
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* Host of the Redis server
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* @var string
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*/
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protected $host;
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/**
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* Scheme of the Redis server (tcp, tls, unix)
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* @var string
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*/
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protected $scheme;
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/**
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* Port on which the Redis server is running
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* @var integer
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*/
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protected $port;
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/**
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* Timeout for connecting to Redis server
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* @var float
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*/
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protected $timeout;
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/**
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* Timeout for reading response from Redis server
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* @var float
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*/
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protected $readTimeout;
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/**
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* Unique identifier for persistent connections
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* @var string
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*/
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protected $persistent;
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/**
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* @var bool
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*/
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protected $closeOnDestruct = TRUE;
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/**
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* @var bool
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*/
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protected $connected = FALSE;
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/**
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* @var bool
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*/
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protected $standalone;
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/**
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* @var int
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*/
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protected $maxConnectRetries = 0;
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/**
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* @var int
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*/
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protected $connectFailures = 0;
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/**
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* @var bool
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*/
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protected $usePipeline = FALSE;
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/**
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* @var array
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*/
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protected $commandNames;
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/**
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* @var string
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*/
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protected $commands;
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/**
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* @var bool
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*/
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protected $isMulti = FALSE;
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/**
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* @var bool
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*/
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protected $isWatching = FALSE;
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/**
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* @var string
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*/
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protected $authPassword;
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/**
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* @var int
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*/
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protected $selectedDb = 0;
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/**
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* Aliases for backwards compatibility with phpredis
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* @var array
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*/
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protected $wrapperMethods = array('delete' => 'del', 'getkeys' => 'keys', 'sremove' => 'srem');
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/**
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* @var array
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*/
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protected $renamedCommands;
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/**
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* @var int
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*/
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protected $requests = 0;
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/**
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* @var bool
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*/
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protected $subscribed = false;
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/**
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* Creates a Redisent connection to the Redis server on host {@link $host} and port {@link $port}.
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* $host may also be a path to a unix socket or a string in the form of tcp://[hostname]:[port] or unix://[path]
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*
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* @param string $host The hostname of the Redis server
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* @param integer $port The port number of the Redis server
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* @param float $timeout Timeout period in seconds
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* @param string $persistent Flag to establish persistent connection
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* @param int $db The selected datbase of the Redis server
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* @param string $password The authentication password of the Redis server
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*/
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public function __construct($host = '127.0.0.1', $port = 6379, $timeout = null, $persistent = '', $db = 0, $password = null)
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{
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$this->host = (string) $host;
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$this->port = (int) $port;
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$this->scheme = null;
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$this->timeout = $timeout;
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$this->persistent = (string) $persistent;
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$this->standalone = ! extension_loaded('redis');
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$this->authPassword = $password;
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$this->selectedDb = (int)$db;
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$this->convertHost();
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// PHP Redis extension support TLS since 5.3.0
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if ($this->scheme == 'tls' && !$this->standalone && version_compare(phpversion('redis'),'5.3.0','<')){
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$this->standalone = true;
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}
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}
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public function __destruct()
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{
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if ($this->closeOnDestruct) {
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$this->close();
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}
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}
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/**
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* @return bool
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*/
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public function isSubscribed()
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{
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return $this->subscribed;
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}
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/**
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* Return the host of the Redis instance
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* @return string
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*/
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public function getHost()
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{
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return $this->host;
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}
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/**
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* Return the port of the Redis instance
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* @return int
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*/
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public function getPort()
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{
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return $this->port;
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}
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/**
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* Return the selected database
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* @return int
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*/
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public function getSelectedDb()
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{
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return $this->selectedDb;
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}
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/**
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* @return string
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*/
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public function getPersistence()
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{
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return $this->persistent;
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}
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/**
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* @throws CredisException
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* @return Credis_Client
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*/
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public function forceStandalone()
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{
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if ($this->standalone) {
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return $this;
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}
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if($this->connected) {
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throw new CredisException('Cannot force Credis_Client to use standalone PHP driver after a connection has already been established.');
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}
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$this->standalone = TRUE;
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return $this;
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}
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/**
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* @param int $retries
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* @return Credis_Client
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*/
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public function setMaxConnectRetries($retries)
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{
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$this->maxConnectRetries = $retries;
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return $this;
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}
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/**
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* @param bool $flag
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* @return Credis_Client
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*/
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public function setCloseOnDestruct($flag)
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{
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$this->closeOnDestruct = $flag;
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return $this;
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}
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protected function convertHost()
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{
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if (preg_match('#^(tcp|tls|unix)://(.*)$#', $this->host, $matches)) {
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if($matches[1] == 'tcp' || $matches[1] == 'tls') {
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$this->scheme = $matches[1];
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if ( ! preg_match('#^([^:]+)(:([0-9]+))?(/(.+))?$#', $matches[2], $matches)) {
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throw new CredisException('Invalid host format; expected '.$this->scheme.'://host[:port][/persistence_identifier]');
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}
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$this->host = $matches[1];
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$this->port = (int) (isset($matches[3]) ? $matches[3] : $this->port);
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$this->persistent = isset($matches[5]) ? $matches[5] : $this->persistent;
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} else {
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$this->host = $matches[2];
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$this->port = NULL;
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$this->scheme = 'unix';
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if (substr($this->host,0,1) != '/') {
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throw new CredisException('Invalid unix socket format; expected unix:///path/to/redis.sock');
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}
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}
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}
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if ($this->port !== NULL && substr($this->host,0,1) == '/') {
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$this->port = NULL;
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$this->scheme = 'unix';
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}
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if (!$this->scheme) {
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$this->scheme = 'tcp';
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}
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}
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/**
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* @throws CredisException
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* @return Credis_Client
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*/
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public function connect()
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{
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if ($this->connected) {
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return $this;
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}
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$this->close(true);
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if ($this->standalone) {
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$flags = STREAM_CLIENT_CONNECT;
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$remote_socket = $this->port === NULL
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? $this->scheme.'://'.$this->host
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: $this->scheme.'://'.$this->host.':'.$this->port;
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if ($this->persistent && $this->port !== NULL) {
|
|
// Persistent connections to UNIX sockets are not supported
|
|
$remote_socket .= '/'.$this->persistent;
|
|
$flags = $flags | STREAM_CLIENT_PERSISTENT;
|
|
}
|
|
$result = $this->redis = @stream_socket_client($remote_socket, $errno, $errstr, $this->timeout !== null ? $this->timeout : 2.5, $flags);
|
|
}
|
|
else {
|
|
if ( ! $this->redis) {
|
|
$this->redis = new \Redis;
|
|
}
|
|
$socketTimeout = $this->timeout ? $this->timeout : 0.0;
|
|
try
|
|
{
|
|
$result = $this->persistent
|
|
? $this->redis->pconnect($this->host, $this->port, $socketTimeout, $this->persistent)
|
|
: $this->redis->connect($this->host, $this->port, $socketTimeout);
|
|
}
|
|
catch(Exception $e)
|
|
{
|
|
// Some applications will capture the php error that phpredis can sometimes generate and throw it as an Exception
|
|
$result = false;
|
|
$errno = 1;
|
|
$errstr = $e->getMessage();
|
|
}
|
|
}
|
|
|
|
// Use recursion for connection retries
|
|
if ( ! $result) {
|
|
$this->connectFailures++;
|
|
if ($this->connectFailures <= $this->maxConnectRetries) {
|
|
return $this->connect();
|
|
}
|
|
$failures = $this->connectFailures;
|
|
$this->connectFailures = 0;
|
|
throw new CredisException("Connection to Redis {$this->host}:{$this->port} failed after $failures failures." . (isset($errno) && isset($errstr) ? "Last Error : ({$errno}) {$errstr}" : ""));
|
|
}
|
|
|
|
$this->connectFailures = 0;
|
|
$this->connected = TRUE;
|
|
|
|
// Set read timeout
|
|
if ($this->readTimeout) {
|
|
$this->setReadTimeout($this->readTimeout);
|
|
}
|
|
|
|
if($this->authPassword) {
|
|
$this->auth($this->authPassword);
|
|
}
|
|
if($this->selectedDb !== 0) {
|
|
$this->select($this->selectedDb);
|
|
}
|
|
return $this;
|
|
}
|
|
/**
|
|
* @return bool
|
|
*/
|
|
public function isConnected()
|
|
{
|
|
return $this->connected;
|
|
}
|
|
/**
|
|
* Set the read timeout for the connection. Use 0 to disable timeouts entirely (or use a very long timeout
|
|
* if not supported).
|
|
*
|
|
* @param int $timeout 0 (or -1) for no timeout, otherwise number of seconds
|
|
* @throws CredisException
|
|
* @return Credis_Client
|
|
*/
|
|
public function setReadTimeout($timeout)
|
|
{
|
|
if ($timeout < -1) {
|
|
throw new CredisException('Timeout values less than -1 are not accepted.');
|
|
}
|
|
$this->readTimeout = $timeout;
|
|
if ($this->isConnected()) {
|
|
if ($this->standalone) {
|
|
$timeout = $timeout <= 0 ? 315360000 : $timeout; // Ten-year timeout
|
|
stream_set_blocking($this->redis, TRUE);
|
|
stream_set_timeout($this->redis, (int) floor($timeout), ($timeout - floor($timeout)) * 1000000);
|
|
} else if (defined('Redis::OPT_READ_TIMEOUT')) {
|
|
// supported in phpredis 2.2.3
|
|
// a timeout value of -1 means reads will not timeout
|
|
$timeout = $timeout == 0 ? -1 : $timeout;
|
|
$this->redis->setOption(\Redis::OPT_READ_TIMEOUT, $timeout);
|
|
}
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
public function close($force = FALSE)
|
|
{
|
|
$result = TRUE;
|
|
if ($this->redis && ($force || $this->connected && ! $this->persistent)) {
|
|
try {
|
|
if (is_callable(array($this->redis, 'close'))) {
|
|
$this->redis->close();
|
|
} else {
|
|
@fclose($this->redis);
|
|
$this->redis = null;
|
|
}
|
|
} catch (Exception $e) {
|
|
; // Ignore exceptions on close
|
|
}
|
|
$this->connected = $this->usePipeline = $this->isMulti = $this->isWatching = FALSE;
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Enabled command renaming and provide mapping method. Supported methods are:
|
|
*
|
|
* 1. renameCommand('foo') // Salted md5 hash for all commands -> md5('foo'.$command)
|
|
* 2. renameCommand(function($command){ return 'my'.$command; }); // Callable
|
|
* 3. renameCommand('get', 'foo') // Single command -> alias
|
|
* 4. renameCommand(['get' => 'foo', 'set' => 'bar']) // Full map of [command -> alias]
|
|
*
|
|
* @param string|callable|array $command
|
|
* @param string|null $alias
|
|
* @return $this
|
|
*/
|
|
public function renameCommand($command, $alias = NULL)
|
|
{
|
|
if ( ! $this->standalone) {
|
|
$this->forceStandalone();
|
|
}
|
|
if ($alias === NULL) {
|
|
$this->renamedCommands = $command;
|
|
} else {
|
|
if ( ! $this->renamedCommands) {
|
|
$this->renamedCommands = array();
|
|
}
|
|
$this->renamedCommands[$command] = $alias;
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @param $command
|
|
* @return string
|
|
*/
|
|
public function getRenamedCommand($command)
|
|
{
|
|
static $map;
|
|
|
|
// Command renaming not enabled
|
|
if ($this->renamedCommands === NULL) {
|
|
return $command;
|
|
}
|
|
|
|
// Initialize command map
|
|
if ($map === NULL) {
|
|
if (is_array($this->renamedCommands)) {
|
|
$map = $this->renamedCommands;
|
|
} else {
|
|
$map = array();
|
|
}
|
|
}
|
|
|
|
// Generate and return cached result
|
|
if ( ! isset($map[$command])) {
|
|
// String means all commands are hashed with salted md5
|
|
if (is_string($this->renamedCommands)) {
|
|
$map[$command] = md5($this->renamedCommands.$command);
|
|
}
|
|
// Would already be set in $map if it was intended to be renamed
|
|
else if (is_array($this->renamedCommands)) {
|
|
return $command;
|
|
}
|
|
// User-supplied function
|
|
else if (is_callable($this->renamedCommands)) {
|
|
$map[$command] = call_user_func($this->renamedCommands, $command);
|
|
}
|
|
}
|
|
return $map[$command];
|
|
}
|
|
|
|
/**
|
|
* @param string $password
|
|
* @return bool
|
|
*/
|
|
public function auth($password)
|
|
{
|
|
$response = $this->__call('auth', array($password));
|
|
$this->authPassword = $password;
|
|
return $response;
|
|
}
|
|
|
|
/**
|
|
* @param int $index
|
|
* @return bool
|
|
*/
|
|
public function select($index)
|
|
{
|
|
$response = $this->__call('select', array($index));
|
|
$this->selectedDb = (int) $index;
|
|
return $response;
|
|
}
|
|
|
|
/**
|
|
* @param string|array $pattern
|
|
* @return array
|
|
*/
|
|
public function pUnsubscribe()
|
|
{
|
|
list($command, $channel, $subscribedChannels) = $this->__call('punsubscribe', func_get_args());
|
|
$this->subscribed = $subscribedChannels > 0;
|
|
return array($command, $channel, $subscribedChannels);
|
|
}
|
|
|
|
/**
|
|
* @param int $Iterator
|
|
* @param string $pattern
|
|
* @param int $count
|
|
* @return bool|array
|
|
*/
|
|
public function scan(&$Iterator, $pattern = null, $count = null)
|
|
{
|
|
return $this->__call('scan', array(&$Iterator, $pattern, $count));
|
|
}
|
|
|
|
/**
|
|
* @param int $Iterator
|
|
* @param string $field
|
|
* @param string $pattern
|
|
* @param int $count
|
|
* @return bool|array
|
|
*/
|
|
public function hscan(&$Iterator, $field, $pattern = null, $count = null)
|
|
{
|
|
return $this->__call('hscan', array($field, &$Iterator, $pattern, $count));
|
|
}
|
|
|
|
/**
|
|
* @param int $Iterator
|
|
* @param string $field
|
|
* @param string $pattern
|
|
* @param int $Iterator
|
|
* @return bool|array
|
|
*/
|
|
public function sscan(&$Iterator, $field, $pattern = null, $count = null)
|
|
{
|
|
return $this->__call('sscan', array($field, &$Iterator, $pattern, $count));
|
|
}
|
|
|
|
/**
|
|
* @param int $Iterator
|
|
* @param string $field
|
|
* @param string $pattern
|
|
* @param int $Iterator
|
|
* @return bool|array
|
|
*/
|
|
public function zscan(&$Iterator, $field, $pattern = null, $count = null)
|
|
{
|
|
return $this->__call('zscan', array($field, &$Iterator, $pattern, $count));
|
|
}
|
|
|
|
/**
|
|
* @param string|array $patterns
|
|
* @param $callback
|
|
* @return $this|array|bool|Credis_Client|mixed|null|string
|
|
* @throws CredisException
|
|
*/
|
|
public function pSubscribe($patterns, $callback)
|
|
{
|
|
if ( ! $this->standalone) {
|
|
return $this->__call('pSubscribe', array((array)$patterns, $callback));
|
|
}
|
|
|
|
// Standalone mode: use infinite loop to subscribe until timeout
|
|
$patternCount = is_array($patterns) ? count($patterns) : 1;
|
|
while ($patternCount--) {
|
|
if (isset($status)) {
|
|
list($command, $pattern, $status) = $this->read_reply();
|
|
} else {
|
|
list($command, $pattern, $status) = $this->__call('psubscribe', array($patterns));
|
|
}
|
|
$this->subscribed = $status > 0;
|
|
if ( ! $status) {
|
|
throw new CredisException('Invalid pSubscribe response.');
|
|
}
|
|
}
|
|
while ($this->subscribed) {
|
|
list($type, $pattern, $channel, $message) = $this->read_reply();
|
|
if ($type != 'pmessage') {
|
|
throw new CredisException('Received non-pmessage reply.');
|
|
}
|
|
$callback($this, $pattern, $channel, $message);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param string|array $pattern
|
|
* @return array
|
|
*/
|
|
public function unsubscribe()
|
|
{
|
|
list($command, $channel, $subscribedChannels) = $this->__call('unsubscribe', func_get_args());
|
|
$this->subscribed = $subscribedChannels > 0;
|
|
return array($command, $channel, $subscribedChannels);
|
|
}
|
|
|
|
/**
|
|
* @param string|array $channels
|
|
* @param $callback
|
|
* @throws CredisException
|
|
* @return $this|array|bool|Credis_Client|mixed|null|string
|
|
*/
|
|
public function subscribe($channels, $callback)
|
|
{
|
|
if ( ! $this->standalone) {
|
|
return $this->__call('subscribe', array((array)$channels, $callback));
|
|
}
|
|
|
|
// Standalone mode: use infinite loop to subscribe until timeout
|
|
$channelCount = is_array($channels) ? count($channels) : 1;
|
|
while ($channelCount--) {
|
|
if (isset($status)) {
|
|
list($command, $channel, $status) = $this->read_reply();
|
|
} else {
|
|
list($command, $channel, $status) = $this->__call('subscribe', array($channels));
|
|
}
|
|
$this->subscribed = $status > 0;
|
|
if ( ! $status) {
|
|
throw new CredisException('Invalid subscribe response.');
|
|
}
|
|
}
|
|
while ($this->subscribed) {
|
|
list($type, $channel, $message) = $this->read_reply();
|
|
if ($type != 'message') {
|
|
throw new CredisException('Received non-message reply.');
|
|
}
|
|
$callback($this, $channel, $message);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @param string|null $name
|
|
* @return string|Credis_Client
|
|
*/
|
|
public function ping($name = null)
|
|
{
|
|
return $this->__call('ping', $name ? array($name) : array());
|
|
}
|
|
|
|
/**
|
|
* @param string $command
|
|
* @param array $args
|
|
*
|
|
* @return array|Credis_Client
|
|
*/
|
|
public function rawCommand($command, array $args)
|
|
{
|
|
if($this->standalone)
|
|
{
|
|
return $this->__call($command, $args);
|
|
}
|
|
else
|
|
{
|
|
\array_unshift($args, $command);
|
|
return $this->__call('rawCommand', $args);
|
|
}
|
|
}
|
|
|
|
public function __call($name, $args)
|
|
{
|
|
// Lazy connection
|
|
$this->connect();
|
|
|
|
$name = strtolower($name);
|
|
|
|
// Send request via native PHP
|
|
if($this->standalone)
|
|
{
|
|
$trackedArgs = array();
|
|
switch ($name) {
|
|
case 'eval':
|
|
case 'evalsha':
|
|
$script = array_shift($args);
|
|
$keys = (array) array_shift($args);
|
|
$eArgs = (array) array_shift($args);
|
|
$args = array($script, count($keys), $keys, $eArgs);
|
|
break;
|
|
case 'zinterstore':
|
|
case 'zunionstore':
|
|
$dest = array_shift($args);
|
|
$keys = (array) array_shift($args);
|
|
$weights = array_shift($args);
|
|
$aggregate = array_shift($args);
|
|
$args = array($dest, count($keys), $keys);
|
|
if ($weights) {
|
|
$args[] = (array) $weights;
|
|
}
|
|
if ($aggregate) {
|
|
$args[] = $aggregate;
|
|
}
|
|
break;
|
|
case 'set':
|
|
// The php redis module has different behaviour with ttl
|
|
// https://github.com/phpredis/phpredis#set
|
|
if (count($args) === 3 && is_int($args[2])) {
|
|
$args = array($args[0], $args[1], array('EX', $args[2]));
|
|
} elseif (count($args) === 3 && is_array($args[2])) {
|
|
$tmp_args = $args;
|
|
$args = array($tmp_args[0], $tmp_args[1]);
|
|
foreach ($tmp_args[2] as $k=>$v) {
|
|
if (is_string($k)) {
|
|
$args[] = array($k,$v);
|
|
} elseif (is_int($k)) {
|
|
$args[] = $v;
|
|
}
|
|
}
|
|
unset($tmp_args);
|
|
}
|
|
break;
|
|
case 'scan':
|
|
$trackedArgs = array(&$args[0]);
|
|
if (empty($trackedArgs[0]))
|
|
{
|
|
$trackedArgs[0] = 0;
|
|
}
|
|
$eArgs = array($trackedArgs[0]);
|
|
if (!empty($args[1]))
|
|
{
|
|
$eArgs[] = 'MATCH';
|
|
$eArgs[] = $args[1];
|
|
}
|
|
if (!empty($args[2]))
|
|
{
|
|
$eArgs[] = 'COUNT';
|
|
$eArgs[] = $args[2];
|
|
}
|
|
$args = $eArgs;
|
|
break;
|
|
case 'sscan':
|
|
case 'zscan':
|
|
case 'hscan':
|
|
$trackedArgs = array(&$args[1]);
|
|
if (empty($trackedArgs[0]))
|
|
{
|
|
$trackedArgs[0] = 0;
|
|
}
|
|
$eArgs = array($args[0],$trackedArgs[0]);
|
|
if (!empty($args[2]))
|
|
{
|
|
$eArgs[] = 'MATCH';
|
|
$eArgs[] = $args[2];
|
|
}
|
|
if (!empty($args[3]))
|
|
{
|
|
$eArgs[] = 'COUNT';
|
|
$eArgs[] = $args[3];
|
|
}
|
|
$args = $eArgs;
|
|
break;
|
|
case 'zrangebyscore':
|
|
case 'zrevrangebyscore':
|
|
case 'zrange':
|
|
case 'zrevrange':
|
|
if (isset($args[3]) && is_array($args[3])) {
|
|
// map options
|
|
$cArgs = array();
|
|
if (!empty($args[3]['withscores'])) {
|
|
$cArgs[] = 'withscores';
|
|
}
|
|
if (($name == 'zrangebyscore' || $name == 'zrevrangebyscore') && array_key_exists('limit', $args[3])) {
|
|
$cArgs[] = array('limit' => $args[3]['limit']);
|
|
}
|
|
$args[3] = $cArgs;
|
|
$trackedArgs = $cArgs;
|
|
}
|
|
break;
|
|
case 'mget':
|
|
if (isset($args[0]) && is_array($args[0]))
|
|
{
|
|
$args = array_values($args[0]);
|
|
}
|
|
break;
|
|
case 'hmset':
|
|
if (isset($args[1]) && is_array($args[1]))
|
|
{
|
|
$cArgs = array();
|
|
foreach($args[1] as $id => $value)
|
|
{
|
|
$cArgs[] = $id;
|
|
$cArgs[] = $value;
|
|
}
|
|
$args[1] = $cArgs;
|
|
}
|
|
break;
|
|
case 'zsize':
|
|
$name = 'zcard';
|
|
break;
|
|
case 'zdelete':
|
|
$name = 'zrem';
|
|
break;
|
|
case 'hmget':
|
|
// hmget needs to track the keys for rehydrating the results
|
|
if (isset($args[1]))
|
|
{
|
|
$trackedArgs = $args[1];
|
|
}
|
|
break;
|
|
}
|
|
// Flatten arguments
|
|
$args = self::_flattenArguments($args);
|
|
|
|
// In pipeline mode
|
|
if($this->usePipeline)
|
|
{
|
|
if($name === 'pipeline') {
|
|
throw new CredisException('A pipeline is already in use and only one pipeline is supported.');
|
|
}
|
|
else if($name === 'exec') {
|
|
if($this->isMulti) {
|
|
$this->commandNames[] = array($name, $trackedArgs);
|
|
$this->commands .= self::_prepare_command(array($this->getRenamedCommand($name)));
|
|
}
|
|
|
|
// Write request
|
|
if($this->commands) {
|
|
$this->write_command($this->commands);
|
|
}
|
|
$this->commands = NULL;
|
|
|
|
// Read response
|
|
$queuedResponses = array();
|
|
$response = array();
|
|
foreach($this->commandNames as $command) {
|
|
list($name, $arguments) = $command;
|
|
$result = $this->read_reply($name, true);
|
|
if ($result !== null)
|
|
{
|
|
$result = $this->decode_reply($name, $result, $arguments);
|
|
}
|
|
else
|
|
{
|
|
$queuedResponses[] = $command;
|
|
}
|
|
$response[] = $result;
|
|
}
|
|
|
|
if($this->isMulti) {
|
|
$response = array_pop($response);
|
|
foreach($queuedResponses as $key => $command)
|
|
{
|
|
list($name, $arguments) = $command;
|
|
$response[$key] = $this->decode_reply($name, $response[$key], $arguments);
|
|
}
|
|
}
|
|
|
|
$this->commandNames = NULL;
|
|
$this->usePipeline = $this->isMulti = FALSE;
|
|
return $response;
|
|
}
|
|
else if ($name === 'discard')
|
|
{
|
|
$this->commands = NULL;
|
|
$this->commandNames = NULL;
|
|
$this->usePipeline = $this->isMulti = FALSE;
|
|
}
|
|
else {
|
|
if($name === 'multi') {
|
|
$this->isMulti = TRUE;
|
|
}
|
|
array_unshift($args, $this->getRenamedCommand($name));
|
|
$this->commandNames[] = array($name, $trackedArgs);
|
|
$this->commands .= self::_prepare_command($args);
|
|
return $this;
|
|
}
|
|
}
|
|
|
|
// Start pipeline mode
|
|
if($name === 'pipeline')
|
|
{
|
|
$this->usePipeline = TRUE;
|
|
$this->commandNames = array();
|
|
$this->commands = '';
|
|
return $this;
|
|
}
|
|
|
|
// If unwatching, allow reconnect with no error thrown
|
|
if($name === 'unwatch') {
|
|
$this->isWatching = FALSE;
|
|
}
|
|
|
|
// Non-pipeline mode
|
|
array_unshift($args, $this->getRenamedCommand($name));
|
|
$command = self::_prepare_command($args);
|
|
$this->write_command($command);
|
|
$response = $this->read_reply($name);
|
|
$response = $this->decode_reply($name, $response, $trackedArgs);
|
|
|
|
// Watch mode disables reconnect so error is thrown
|
|
if($name == 'watch') {
|
|
$this->isWatching = TRUE;
|
|
}
|
|
// Transaction mode
|
|
else if($this->isMulti && ($name == 'exec' || $name == 'discard')) {
|
|
$this->isMulti = FALSE;
|
|
}
|
|
// Started transaction
|
|
else if($this->isMulti || $name == 'multi') {
|
|
$this->isMulti = TRUE;
|
|
$response = $this;
|
|
}
|
|
}
|
|
|
|
// Send request via phpredis client
|
|
else
|
|
{
|
|
// Tweak arguments
|
|
switch($name) {
|
|
case 'get': // optimize common cases
|
|
case 'set':
|
|
case 'hget':
|
|
case 'hset':
|
|
case 'setex':
|
|
case 'mset':
|
|
case 'msetnx':
|
|
case 'hmset':
|
|
case 'hmget':
|
|
case 'del':
|
|
case 'zrangebyscore':
|
|
case 'zrevrangebyscore':
|
|
break;
|
|
case 'zrange':
|
|
case 'zrevrange':
|
|
if (isset($args[3]) && is_array($args[3]))
|
|
{
|
|
$cArgs = $args[3];
|
|
$args[3] = !empty($cArgs['withscores']);
|
|
}
|
|
$args = self::_flattenArguments($args);
|
|
break;
|
|
case 'zinterstore':
|
|
case 'zunionstore':
|
|
$cArgs = array();
|
|
$cArgs[] = array_shift($args); // destination
|
|
$cArgs[] = array_shift($args); // keys
|
|
if(isset($args[0]) and isset($args[0]['weights'])) {
|
|
$cArgs[] = (array) $args[0]['weights'];
|
|
} else {
|
|
$cArgs[] = null;
|
|
}
|
|
if(isset($args[0]) and isset($args[0]['aggregate'])) {
|
|
$cArgs[] = strtoupper($args[0]['aggregate']);
|
|
}
|
|
$args = $cArgs;
|
|
break;
|
|
case 'mget':
|
|
if(isset($args[0]) && ! is_array($args[0])) {
|
|
$args = array($args);
|
|
}
|
|
break;
|
|
case 'lrem':
|
|
$args = array($args[0], $args[2], $args[1]);
|
|
break;
|
|
case 'eval':
|
|
case 'evalsha':
|
|
if (isset($args[1]) && is_array($args[1])) {
|
|
$cKeys = $args[1];
|
|
} elseif (isset($args[1]) && is_string($args[1])) {
|
|
$cKeys = array($args[1]);
|
|
} else {
|
|
$cKeys = array();
|
|
}
|
|
if (isset($args[2]) && is_array($args[2])) {
|
|
$cArgs = $args[2];
|
|
} elseif (isset($args[2]) && is_string($args[2])) {
|
|
$cArgs = array($args[2]);
|
|
} else {
|
|
$cArgs = array();
|
|
}
|
|
$args = array($args[0], array_merge($cKeys, $cArgs), count($cKeys));
|
|
break;
|
|
case 'subscribe':
|
|
case 'psubscribe':
|
|
break;
|
|
case 'scan':
|
|
case 'sscan':
|
|
case 'hscan':
|
|
case 'zscan':
|
|
// allow phpredis to see the caller's reference
|
|
//$param_ref =& $args[0];
|
|
break;
|
|
default:
|
|
// Flatten arguments
|
|
$args = self::_flattenArguments($args);
|
|
}
|
|
|
|
try {
|
|
// Proxy pipeline mode to the phpredis library
|
|
if($name == 'pipeline' || $name == 'multi') {
|
|
if($this->isMulti) {
|
|
return $this;
|
|
} else {
|
|
$this->isMulti = TRUE;
|
|
$this->redisMulti = call_user_func_array(array($this->redis, $name), $args);
|
|
return $this;
|
|
}
|
|
}
|
|
else if($name == 'exec' || $name == 'discard') {
|
|
$this->isMulti = FALSE;
|
|
$response = $this->redisMulti->$name();
|
|
$this->redisMulti = NULL;
|
|
#echo "> $name : ".substr(print_r($response, TRUE),0,100)."\n";
|
|
return $response;
|
|
}
|
|
|
|
// Use aliases to be compatible with phpredis wrapper
|
|
if(isset($this->wrapperMethods[$name])) {
|
|
$name = $this->wrapperMethods[$name];
|
|
}
|
|
|
|
// Multi and pipeline return self for chaining
|
|
if($this->isMulti) {
|
|
call_user_func_array(array($this->redisMulti, $name), $args);
|
|
return $this;
|
|
}
|
|
|
|
// Send request, retry one time when using persistent connections on the first request only
|
|
$this->requests++;
|
|
try {
|
|
$response = call_user_func_array(array($this->redis, $name), $args);
|
|
} catch (\RedisException $e) {
|
|
if ($this->persistent && $this->requests == 1 && $e->getMessage() == 'read error on connection') {
|
|
$this->close(true);
|
|
$this->connect();
|
|
$response = call_user_func_array(array($this->redis, $name), $args);
|
|
} else {
|
|
throw $e;
|
|
}
|
|
}
|
|
}
|
|
// Wrap exceptions
|
|
catch(\RedisException $e) {
|
|
$code = 0;
|
|
if ( ! ($result = $this->redis->IsConnected())) {
|
|
$this->close(true);
|
|
$code = CredisException::CODE_DISCONNECTED;
|
|
}
|
|
throw new CredisException($e->getMessage(), $code, $e);
|
|
}
|
|
|
|
#echo "> $name : ".substr(print_r($response, TRUE),0,100)."\n";
|
|
|
|
// change return values where it is too difficult to minim in standalone mode
|
|
switch($name)
|
|
{
|
|
case 'type':
|
|
$typeMap = array(
|
|
self::TYPE_NONE,
|
|
self::TYPE_STRING,
|
|
self::TYPE_SET,
|
|
self::TYPE_LIST,
|
|
self::TYPE_ZSET,
|
|
self::TYPE_HASH,
|
|
);
|
|
$response = $typeMap[$response];
|
|
break;
|
|
|
|
// Handle scripting errors
|
|
case 'eval':
|
|
case 'evalsha':
|
|
case 'script':
|
|
$error = $this->redis->getLastError();
|
|
$this->redis->clearLastError();
|
|
if ($error && substr($error,0,8) == 'NOSCRIPT') {
|
|
$response = NULL;
|
|
} else if ($error) {
|
|
throw new CredisException($error);
|
|
}
|
|
break;
|
|
case 'exists':
|
|
// smooth over phpredis-v4 vs earlier difference to match documented credis return results
|
|
$response = (int) $response;
|
|
break;
|
|
case 'ping':
|
|
if ($response) {
|
|
if ($response === true) {
|
|
$response = isset($args[0]) ? $args[0] : "PONG";
|
|
} else if ($response[0] === '+') {
|
|
$response = substr($response, 1);
|
|
}
|
|
}
|
|
break;
|
|
case 'auth':
|
|
if (is_bool($response) && $response === true){
|
|
$this->redis->clearLastError();
|
|
}
|
|
default:
|
|
$error = $this->redis->getLastError();
|
|
$this->redis->clearLastError();
|
|
if ($error) {
|
|
throw new CredisException(rtrim($error));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $response;
|
|
}
|
|
|
|
protected function write_command($command)
|
|
{
|
|
// Reconnect on lost connection (Redis server "timeout" exceeded since last command)
|
|
if(feof($this->redis)) {
|
|
// If a watch or transaction was in progress and connection was lost, throw error rather than reconnect
|
|
// since transaction/watch state will be lost.
|
|
if(($this->isMulti && ! $this->usePipeline) || $this->isWatching) {
|
|
$this->close(true);
|
|
throw new CredisException('Lost connection to Redis server during watch or transaction.');
|
|
}
|
|
$this->close(true);
|
|
$this->connect();
|
|
if($this->authPassword) {
|
|
$this->auth($this->authPassword);
|
|
}
|
|
if($this->selectedDb != 0) {
|
|
$this->select($this->selectedDb);
|
|
}
|
|
}
|
|
|
|
$commandLen = strlen($command);
|
|
$lastFailed = FALSE;
|
|
for ($written = 0; $written < $commandLen; $written += $fwrite) {
|
|
$fwrite = fwrite($this->redis, substr($command, $written));
|
|
if ($fwrite === FALSE || ($fwrite == 0 && $lastFailed)) {
|
|
$this->close(true);
|
|
throw new CredisException('Failed to write entire command to stream');
|
|
}
|
|
$lastFailed = $fwrite == 0;
|
|
}
|
|
}
|
|
|
|
protected function read_reply($name = '', $returnQueued = false)
|
|
{
|
|
$reply = fgets($this->redis);
|
|
if($reply === FALSE) {
|
|
$info = stream_get_meta_data($this->redis);
|
|
$this->close(true);
|
|
if ($info['timed_out']) {
|
|
throw new CredisException('Read operation timed out.', CredisException::CODE_TIMED_OUT);
|
|
} else {
|
|
throw new CredisException('Lost connection to Redis server.', CredisException::CODE_DISCONNECTED);
|
|
}
|
|
}
|
|
$reply = rtrim($reply, CRLF);
|
|
#echo "> $name: $reply\n";
|
|
$replyType = substr($reply, 0, 1);
|
|
switch ($replyType) {
|
|
/* Error reply */
|
|
case '-':
|
|
if($this->isMulti || $this->usePipeline) {
|
|
$response = FALSE;
|
|
} else if ($name == 'evalsha' && substr($reply,0,9) == '-NOSCRIPT') {
|
|
$response = NULL;
|
|
} else {
|
|
throw new CredisException(substr($reply,0,4) == '-ERR' ? 'ERR '.substr($reply, 5) : substr($reply,1));
|
|
}
|
|
break;
|
|
/* Inline reply */
|
|
case '+':
|
|
$response = substr($reply, 1);
|
|
if($response == 'OK') {
|
|
return TRUE;
|
|
}
|
|
if($response == 'QUEUED') {
|
|
return $returnQueued ? null : true;
|
|
}
|
|
break;
|
|
/* Bulk reply */
|
|
case '$':
|
|
if ($reply == '$-1') return FALSE;
|
|
$size = (int) substr($reply, 1);
|
|
$response = stream_get_contents($this->redis, $size + 2);
|
|
if( ! $response) {
|
|
$this->close(true);
|
|
throw new CredisException('Error reading reply.');
|
|
}
|
|
$response = substr($response, 0, $size);
|
|
break;
|
|
/* Multi-bulk reply */
|
|
case '*':
|
|
$count = substr($reply, 1);
|
|
if ($count == '-1') return FALSE;
|
|
|
|
$response = array();
|
|
for ($i = 0; $i < $count; $i++) {
|
|
$response[] = $this->read_reply();
|
|
}
|
|
break;
|
|
/* Integer reply */
|
|
case ':':
|
|
$response = intval(substr($reply, 1));
|
|
break;
|
|
default:
|
|
throw new CredisException('Invalid response: '.print_r($reply, TRUE));
|
|
break;
|
|
}
|
|
|
|
return $response;
|
|
}
|
|
|
|
protected function decode_reply($name, $response, array &$arguments = array() )
|
|
{
|
|
// Smooth over differences between phpredis and standalone response
|
|
switch ($name)
|
|
{
|
|
case '': // Minor optimization for multi-bulk replies
|
|
break;
|
|
case 'config':
|
|
case 'hgetall':
|
|
$keys = $values = array();
|
|
while ($response)
|
|
{
|
|
$keys[] = array_shift($response);
|
|
$values[] = array_shift($response);
|
|
}
|
|
$response = count($keys) ? array_combine($keys, $values) : array();
|
|
break;
|
|
case 'info':
|
|
$lines = explode(CRLF, trim($response, CRLF));
|
|
$response = array();
|
|
foreach ($lines as $line)
|
|
{
|
|
if (!$line || substr($line, 0, 1) == '#')
|
|
{
|
|
continue;
|
|
}
|
|
list($key, $value) = explode(':', $line, 2);
|
|
$response[$key] = $value;
|
|
}
|
|
break;
|
|
case 'ttl':
|
|
if ($response === -1)
|
|
{
|
|
$response = false;
|
|
}
|
|
break;
|
|
case 'hmget':
|
|
if (count($arguments) != count($response))
|
|
{
|
|
throw new CredisException(
|
|
'hmget arguments and response do not match: ' . print_r($arguments, true) . ' ' . print_r(
|
|
$response, true
|
|
)
|
|
);
|
|
}
|
|
// rehydrate results into key => value form
|
|
$response = array_combine($arguments, $response);
|
|
break;
|
|
|
|
case 'scan':
|
|
case 'sscan':
|
|
$arguments[0] = intval(array_shift($response));
|
|
$response = empty($response[0]) ? array() : $response[0];
|
|
break;
|
|
case 'hscan':
|
|
case 'zscan':
|
|
$arguments[0] = intval(array_shift($response));
|
|
$response = empty($response[0]) ? array() : $response[0];
|
|
if (!empty($response) && is_array($response))
|
|
{
|
|
$count = count($response);
|
|
$out = array();
|
|
for ($i = 0; $i < $count; $i += 2)
|
|
{
|
|
$out[$response[$i]] = $response[$i + 1];
|
|
}
|
|
$response = $out;
|
|
}
|
|
break;
|
|
case 'zrangebyscore':
|
|
case 'zrevrangebyscore':
|
|
case 'zrange':
|
|
case 'zrevrange':
|
|
if (in_array('withscores', $arguments, true))
|
|
{
|
|
// Map array of values into key=>score list like phpRedis does
|
|
$item = null;
|
|
$out = array();
|
|
foreach ($response as $value)
|
|
{
|
|
if ($item == null)
|
|
{
|
|
$item = $value;
|
|
}
|
|
else
|
|
{
|
|
// 2nd value is the score
|
|
$out[$item] = (float)$value;
|
|
$item = null;
|
|
}
|
|
}
|
|
$response = $out;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return $response;
|
|
}
|
|
|
|
/**
|
|
* Build the Redis unified protocol command
|
|
*
|
|
* @param array $args
|
|
* @return string
|
|
*/
|
|
private static function _prepare_command($args)
|
|
{
|
|
return sprintf('*%d%s%s%s', count($args), CRLF, implode(CRLF, array_map(array('self', '_map'), $args)), CRLF);
|
|
}
|
|
|
|
private static function _map($arg)
|
|
{
|
|
return sprintf('$%d%s%s', strlen($arg), CRLF, $arg);
|
|
}
|
|
|
|
/**
|
|
* Flatten arguments
|
|
*
|
|
* If an argument is an array, the key is inserted as argument followed by the array values
|
|
* array('zrangebyscore', '-inf', 123, array('limit' => array('0', '1')))
|
|
* becomes
|
|
* array('zrangebyscore', '-inf', 123, 'limit', '0', '1')
|
|
*
|
|
* @param array $in
|
|
* @return array
|
|
*/
|
|
private static function _flattenArguments(array $arguments, &$out = array())
|
|
{
|
|
foreach ($arguments as $key => $arg) {
|
|
if (!is_int($key)) {
|
|
$out[] = $key;
|
|
}
|
|
|
|
if (is_array($arg)) {
|
|
self::_flattenArguments($arg, $out);
|
|
} else {
|
|
$out[] = $arg;
|
|
}
|
|
}
|
|
|
|
return $out;
|
|
}
|
|
}
|
|
|