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18 lines
490 B
18 lines
490 B
7 years ago
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<?php
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function token($length = 32) {
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if(!isset($length) || intval($length) <= 8 ){
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$length = 32;
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}
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if (function_exists('random_bytes')) {
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$token = bin2hex(random_bytes($length));
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}
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if (function_exists('mcrypt_create_iv') && phpversion() < '7.1') {
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$token = bin2hex(mcrypt_create_iv($length, MCRYPT_DEV_URANDOM));
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}
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if (function_exists('openssl_random_pseudo_bytes')) {
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$token = bin2hex(openssl_random_pseudo_bytes($length));
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}
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return substr($token, -$length, $length);
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}
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