Php session write to database, phpsession

Php session write to database, phpsession

This article introduces the php session Writing Method to the database and shares it with you for your reference. The specific content is as follows:

<?php ##  codeMaker Alpha 0.1.1 ( haowei.me )#  This framework comply with the GPL license agreement# class session_handler {     protected $maxlifetime = null;  protected $dbHandle = null;  public $config = null;     public static function init($args) {    return new self($args);  }     public function __construct($args) {         $this->config = $args;    $this->maxlifetime = get_cfg_var("session.gc_maxlifetime");    session_set_save_handler(    array($this, "open"),    array($this, "close"),    array($this, "read"),    array($this, "write"),    array($this, "destroy"),    array($this, "gc"));       }     public function open() {    $this->link = mysqli_connect(    $this->config['host'],     $this->config['user'],     $this->config['password'],     $this->config['database']);    mysqli_set_charset($this->link, "utf8");    $sql = 'CREATE TABLE IF NOT EXISTS `%s` (    `session_id` varchar(255) NOT NULL,    `session_data` text,    `session_expires` char(10) NOT NULL,    PRIMARY KEY (`session_id`)    ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;';    $sql = sprintf($sql, $this->config['table']);    mysqli_query($this->link, $sql);    return true;  }     public function close() {    return true;  }        public function read($session_id) {    if(empty($session_id)) return null;         $sql = 'SELECT `session_data` AS `data` FROM `%s` WHERE `session_id` = "%s" AND `session_expires` > "%u"';    $sql = sprintf($sql,     mysqli_real_escape_string($this->link, $this->config['table']),     mysqli_real_escape_string($this->link, $session_id),    time());         $result = mysqli_query($this->link, $sql);    $row = mysqli_fetch_assoc($result);    return $row['data'];       }     public function write($session_id, $session_data) {    if(empty($session_id)) return null;         $newExpires = time() + $this->maxlifetime;    $sql = 'REPLACE INTO `%s` SET `session_id` = "%s", `session_data` = "%s", `session_expires` = "%u"';    $sql = sprintf($sql,     mysqli_real_escape_string($this->link, $this->config['table']),     mysqli_real_escape_string($this->link, $session_id),    mysqli_real_escape_string($this->link, $session_data),    $newExpires);         $result = mysqli_query($this->link, $sql);    return mysqli_affected_rows($this->link);       }     public function destroy($session_id) {    $sql = 'DELETE FROM `%s` WHERE `session_id` = "%s"';    $sql = sprintf($sql,     mysqli_real_escape_string($this->link, $this->config['table']),     mysqli_real_escape_string($this->link, $session_id));     $result = mysqli_query($this->link, $sql);    return mysqli_affected_rows($this->link);  }     public function gc() {    $sql = 'DELETE FROM `%s` WHERE `session_expires` < "%u"';    $sql = sprintf($sql,     mysqli_real_escape_string($this->link, $this->config['table']),     time());         $result = mysqli_query($this->link, $sql);    return mysqli_affected_rows($this->link);  }   } class session {   public static $collection = null;     public static function open($clean = false, $token = false) {    if($clean) ob_end_clean();    if($token) session_id($token);    session_start();    self::$collection = $_SESSION;  }     public static function id() {    $num_args = func_num_args();    if($num_args) {      $args = func_get_arg(0);      return session_id($args);    }else{      return session_id();    }  }     public static function get($name) {    return isset($_SESSION[$name]) ? $_SESSION[$name] : null;  }     public static function set($name, $value) {    $_SESSION[$name] = $value;    return true;  }     public static function delete($name) {    if(!isset($_SESSION[$name])) return null;    unset($_SESSION[$name]);    return true;  }     public static function destroy() {    session_destroy();  }   }   $config = array("host"=> "127.0.0.1","user"=> "root","password"=> "123456","database"=> "test","charset"=> "utf8","table"=> "user_session"); session_handler::init($config);session::open();session::set("profile", array("id"=> 1, "user"=> "haowei", "vip-level"=> 6));

The above is all the content of this article, hoping to help you learn.

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