Konstantin
58 lines
1.7 KiB
PHP
58 lines
1.7 KiB
PHP
<?php
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namespace Session;
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final class DB {
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public $maxlifetime;
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public function __construct($registry) {
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$this->db = $registry->get('db');
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$this->maxlifetime = ini_get('session.gc_maxlifetime') !== null ? (int)ini_get('session.gc_maxlifetime') : 1440;
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$this->gc();
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}
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public function read($session_id) {
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$query = $this->db->query("SELECT `data` FROM `" . DB_PREFIX . "session` WHERE `session_id` = '" . $this->db->escape($session_id) . "' AND `expire` > '" . $this->db->escape(date('Y-m-d H:i:s', time())) . "'");
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if ($query->num_rows) {
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return json_decode($query->row['data'], true);
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} else {
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return false;
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}
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}
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public function write($session_id, $data) {
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if ($session_id) {
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$this->db->query("REPLACE INTO `" . DB_PREFIX . "session` SET `session_id` = '" . $this->db->escape($session_id) . "', `data` = '" . $this->db->escape(json_encode($data)) . "', `expire` = '" . $this->db->escape(date('Y-m-d H:i:s', time() + (int)$this->maxlifetime)) . "'");
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}
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return true;
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}
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public function destroy($session_id) {
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$this->db->query("DELETE FROM `" . DB_PREFIX . "session` WHERE `session_id` = '" . $this->db->escape($session_id) . "'");
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return true;
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}
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public function gc() {
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if (ini_get('session.gc_divisor') && $gc_divisor = (int)ini_get('session.gc_divisor')) {
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$gc_divisor = $gc_divisor === 0 ? 100 : $gc_divisor;
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} else {
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$gc_divisor = 100;
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}
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if (ini_get('session.gc_probability')) {
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$gc_probability = (int)ini_get('session.gc_probability');
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} else {
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$gc_probability = 1;
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}
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if (mt_rand() / mt_getrandmax() > $gc_probability / $gc_divisor) {
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$this->db->query("DELETE FROM `" . DB_PREFIX . "session` WHERE `expire` < '" . $this->db->escape(date('Y-m-d H:i:s', time())) . "'");
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return true;
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}
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}
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} |