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标题: php自定义session示例分享 [打印本页]

作者: xgnic 时间: 2018-2-14 05:58

         下面为session类的代码
[U]复制代码[/U] 代码如下:
Execute("select * from Sessions where SessionID='".session_id()."'");
  $arry=$rs->FetchRow();
  if( $rs && $arry)
  {
  $db->Execute("update Sessions set SessionLast=NOW() where SessionID='".session_id()."'");
  }
  else
  {
  $query = "insert into Sessions set SessionID='".session_id()."',SessionName='$REMOTE_ADDR',SessionLast='NOW()'";
  //echo $query;
  $db->Execute($query);
  }*/
  return true;
}
static function close()
{
  return(true);
}
static function read($id)
{
  echo "session reading now!
";
  global $db;
  return true;
  $timenow = strftime("%Y-%m-%d %H:%M:%S", time());
  $query = "select SessionData from Sessions where SessionID='$id' and SessionLast > '$timenow'";
  $rs = $db->Execute($query);
  if(list($SessionData) = $rs->FetchRow())
  {
//echo $SessionData;
return $SessionData;
  }
  else
  {
return false;
  }
}
static function write($id,$sess_data)
{
  echo "session writing now!
";
  global $db;
  $rs = $db->Execute("select SessionID from Sessions where SessionID='$id'");
  $num = $rs->RecordCount();
  $unix_time = time()+MY_SESS_TIME;
  //echo MY_SESS_TIME;
  $dateleft = strftime("%Y-%m-%d %H:%M:%S", $unix_time);
  if($num Execute($sql);
}
static function destroy($id)
{
  echo "session destroying now!
";
  global $db;
  $sql = "DELETE FROM Sessions WHERE `SessionID` = '$id'";
  $rs = $db->Execute($sql);
  return $rs;
  // $sess_file = "$sess_save_path/sess_$id";
  //return(@unlink($sess_file));
}
/*********************************************
  * WARNING - You will need to implement some *
* sort of garbage collection routine here. *
*********************************************/
static function gc($maxlifetime)
{
  echo "session maxlifetime now!
";
  global $db;
  $timenow = strftime("%Y-%m-%d %H:%M:%S", time());
  $sql = "DELETE FROM `$table_sessions` WHERE `SessionLast` Execute($sql);
  //echo "now gc!
";
  return true;
}
// proceed to use sessions normally
}
使用方法
[U]复制代码[/U] 代码如下:
include("session.class.php");
session::init();
session_start();
define("MY_SESS_TIME", 3600); //SESSION 生存时长
$_SESSION["test"] = "abcdef";


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