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使用session_set_save_handler函数重载SESSION存储方式之MYSQL

2008-12-22 08:09:09 编辑來源:互联网 国际版 评论
 
 
本文为【使用session_set_save_handler函数重载SESSION存储方式之MYSQL】的汉字拼音对照版显示拼音
  <?

   $DB_SERVER = "server"; /* database server hostname */

   $DB_NAME = "dbname"; /* database name */

   $DB_USER = "root"; /* database user */

   $DB_PASS = "*************"; /* database password */

   $DB_SELECT_DB = "";

   $SESS_LIFE = get_cfg_var("session.gc_maxlifetime");

   function sess_open($save_path, $session_name) {

   global $DB_SERVER, $DB_NAME, $DB_USER, $DB_PASS, $DB_SELECT_DB;

   if (! $DB_SELECT_DB = mysql_pconnect($DB_SERVER, $DB_USER, $DB_PASS)) {

   echo "SORRY! MYSQL ERROR : Can't connect to $DB_SERVER as $DB_USER";

   echo "MySQL Error: ", mysql_error();

   die;

   }

   if (! mysql_select_db($DB_NAME, $DB_SELECT_DB)) {

   echo "SORRY! MYSQL ERROR : Unable to select database $DB_NAME";

   die;

   }

   return true;

   }

   function sess_close() {

   return true;

   }

   function sess_read($SessionKey){

  global $DB_SELECT_DB, $SESS_LIFE;

  $Query = "SELECT SessionArray FROM cdb_global_sessions WHERE SessionKey = '".$SessionKey."' AND SessionExpTime > " . time();

  $Result = mysql_query($Query, $DB_SELECT_DB);

   if (list($SessionArray) = mysql_fetch_row($Result)) {

   return $SessionArray;

   }

   return false;

   }

   function sess_write($SessionKey, $VArray) {

   global $DB_SELECT_DB, $SESS_LIFE;

   $SessionExpTime = time() + $SESS_LIFE;

   $SessionArray = addslashes($VArray);

   $Query = "INSERT INTO cdb_global_sessions (SessionKey,SessionExpTime,SessionArray) VALUES ('".$SessionKey."','".$SessionExpTime."','".$SessionArray."')";

   $Result = mysql_query($Query, $DB_SELECT_DB);

   if (!$Result){

   $Query = "UPDATE cdb_global_sessions SET SessionExpTime = '".$SessionExpTime."', SessionArray = '".$SessionArray."' WHERE SessionKey = '".$SessionKey."' AND SessionExpTime > " . time();

   $Result = mysql_query($Query, $DB_SELECT_DB);

   }

   return $Result;

   }

   function sess_destroy($SessionKey) {

   global $DB_SELECT_DB;

   $Query = "DELETE FROM cdb_global_sessions WHERE SessionKey = '".$SessionKey."'";

   $Result = mysql_query($Query, $DB_SELECT_DB);

   return $Result;

   }

   function sess_gc($maxlifetime) {

   global $DB_SELECT_DB;

   $Query = "DELETE FROM cdb_global_sessions WHERE SessionExpTime < " . time();

   $Result = mysql_query($Query, $DB_SELECT_DB);

   return mysql_affected_rows($DB_SELECT_DB);

   }

   session_set_save_handler(

   "sess_open",

   "sess_close",

   "sess_read",

   "sess_write",

   "sess_destroy",

   "sess_gc");

  session_start();

   ?>原文
 
 
<? $DB_SERVER = "server"; /* database server hostname */ $DB_NAME = "dbname"; /* database name */ $DB_USER = "root"; /* database user */ $DB_PASS = "*************"; /* database password */ $DB_SELECT_DB = ""; $SESS_LIFE = get_cfg_var("session.gc_maxlifetime"); function sess_open($save_path, $session_name) { global $DB_SERVER, $DB_NAME, $DB_USER, $DB_PASS, $DB_SELECT_DB; if (! $DB_SELECT_DB = mysql_pconnect($DB_SERVER, $DB_USER, $DB_PASS)) { echo "SORRY! MYSQL ERROR : Can't connect to $DB_SERVER as $DB_USER"; echo "MySQL Error: ", mysql_error(); die; } if (! mysql_select_db($DB_NAME, $DB_SELECT_DB)) { echo "SORRY! MYSQL ERROR : Unable to select database $DB_NAME"; die; } return true; } function sess_close() { return true; } function sess_read($SessionKey){ global $DB_SELECT_DB, $SESS_LIFE; $Query = "SELECT SessionArray FROM cdb_global_sessions WHERE SessionKey = '".$SessionKey."' AND SessionExpTime > " . time(); $Result = mysql_query($Query, $DB_SELECT_DB); if (list($SessionArray) = mysql_fetch_row($Result)) { return $SessionArray; } return false; } function sess_write($SessionKey, $VArray) { global $DB_SELECT_DB, $SESS_LIFE; $SessionExpTime = time() + $SESS_LIFE; $SessionArray = addslashes($VArray); $Query = "INSERT INTO cdb_global_sessions (SessionKey,SessionExpTime,SessionArray) VALUES ('".$SessionKey."','".$SessionExpTime."','".$SessionArray."')"; $Result = mysql_query($Query, $DB_SELECT_DB); if (!$Result){ $Query = "UPDATE cdb_global_sessions SET SessionExpTime = '".$SessionExpTime."', SessionArray = '".$SessionArray."' WHERE SessionKey = '".$SessionKey."' AND SessionExpTime > " . time(); $Result = mysql_query($Query, $DB_SELECT_DB); } return $Result; } function sess_destroy($SessionKey) { global $DB_SELECT_DB; $Query = "DELETE FROM cdb_global_sessions WHERE SessionKey = '".$SessionKey."'"; $Result = mysql_query($Query, $DB_SELECT_DB); return $Result; } function sess_gc($maxlifetime) { global $DB_SELECT_DB; $Query = "DELETE FROM cdb_global_sessions WHERE SessionExpTime < " . time(); $Result = mysql_query($Query, $DB_SELECT_DB); return mysql_affected_rows($DB_SELECT_DB); } session_set_save_handler( "sess_open", "sess_close", "sess_read", "sess_write", "sess_destroy", "sess_gc"); session_start(); ?>
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