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<?php
final class Postgre {
private $link;
public function __construct($hostname, $username, $password, $database, $port = '5432') {
if (!$this->link = pg_connect('host=' . $hostname . ' port=' . $port . ' user=' . $username . ' password=' . $password . ' dbname=' . $database)) {
throw new \Exception('Error: Could not make a database link using ' . $username . '@' . $hostname);
}
if (!pg_ping($this->link)) {
throw new \Exception('Error: Could not connect to database ' . $database);
}
pg_query($this->link, "SET CLIENT_ENCODING TO 'UTF8'");
}
public function query($sql) {
$resource = pg_query($this->link, $sql);
if ($resource) {
if (is_resource($resource)) {
$i = 0;
$data = array();
while ($result = pg_fetch_assoc($resource)) {
$data[$i] = $result;
$i++;
}
pg_free_result($resource);
$query = new \stdClass();
$query->row = isset($data[0]) ? $data[0] : array();
$query->rows = $data;
$query->num_rows = $i;
unset($data);
return $query;
} else {
return true;
}
} else {
throw new \Exception('Error: ' . pg_result_error($this->link) . '<br />' . $sql);
}
}
public function escape($value) {
return pg_escape_string($this->link, $value);
}
public function countAffected() {
return pg_affected_rows($this->link);
}
public function getLastId() {
$query = $this->query("SELECT LASTVAL() AS `id`");
return $query->row['id'];
}
public function __destruct() {
pg_close($this->link);
}
}