PHP封装的数据库保存session功能类

2020-03-22 18:28:39

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本文实例讲述了PHP封装的数据库保存session功能类。分享给大家供大家参考，具体如下：PHP用数据库保存session类：html' target='_blank'>class SafeSessionHandler implements SessionHandlerInterface { public $save_path; public $session_name; public $table; public function __construct() { $this- table = new Table("safe_session"); private function session_id_parse($session_id) { $time = hexdec(substr($session_id, 0, 8)); $skey = substr($session_id, 8); return array($time, $skey); public function close() { loginfo("close: "); return true; public function create_sid() { loginfo("create_sid: "); $time = time(); $skey = ""; $char = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; for ($i=0; $i $i++) { $skey .= $char{mt_rand(0, 61)}; $session = array( "time" = $time, "skey" = $skey, "sval" = "", $this- table- insert($session); return dechex($time) . $skey; public function destroy($session_id) { loginfo("destroy: %s", $session_id); list($time, $skey) = $this- session_id_parse($session_id); $this- table- where("time = ", $time)- where("skey = ", $skey)- delete(); return true; public function gc($maxlifetime) { loginfo("gc: %s", $maxlifetime); $this- table- where("time ", time() - 86400 * 30)- delete(); return true; public function open($save_path, $session_name) { loginfo("open: %s, %s", $save_path, $session_name); $this- save_path = $save_path; $this- session_name = $session_name; return true; public function read($session_id) { loginfo("read: %s", $session_id); list($time, $skey) = $this- session_id_parse($session_id); $row = $this- table- where("time = ", $time)- where("skey = ", $skey)- select()- fetch(); if (empty($row)) { return ""; return $row["sval"]; public function write($session_id, $session_data) { loginfo("write: %s, %s", $session_id, $session_data); $session = array("sval" = $session_data,); list($time, $skey) = $this- session_id_parse($session_id); $this- table- where("time = ", $time)- where("skey = ", $skey)- update($session); return true;更多关于PHP相关内容感兴趣的读者可查看本站专题：《php字符串(string)用法总结》、《PHP数组(Array)操作技巧大全》、《PHP运算与运算符用法总结》、《PHP网络编程技巧总结》、《PHP基本语法入门教程》、《php操作office文档技巧总结(包括word,excel,access,ppt)》、《php日期与时间用法总结》、《php面向对象程序设计入门教程》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》希望本文所述对大家PHP程序设计有所帮助。PHP教程

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