A PHP Error was encountered

Severity: Notice

Message: Only variable references should be returned by reference

Filename: core/Common.php

Line Number: 257


Fatal error: Uncaught Error: Call to undefined function mysql_pconnect() in /home/vhosts/www.zhouhaibing.com/system/database/drivers/mysql/mysql_driver.php:91 Stack trace: #0 /home/vhosts/www.zhouhaibing.com/system/database/DB_driver.php(115): CI_DB_mysql_driver->db_pconnect() #1 /home/vhosts/www.zhouhaibing.com/system/database/DB.php(148): CI_DB_driver->initialize() #2 /home/vhosts/www.zhouhaibing.com/system/core/Loader.php(346): DB(Array, true) #3 /home/vhosts/www.zhouhaibing.com/system/core/Loader.php(291): CI_Loader->database('', false, true) #4 /home/vhosts/www.zhouhaibing.com/application/controllers/welcome.php(8): CI_Loader->model('blog_model', 'blog', '') #5 /home/vhosts/www.zhouhaibing.com/system/core/CodeIgniter.php(308): Welcome->__construct() #6 /home/vhosts/www.zhouhaibing.com/index.php(202): require_once('/home/vhosts/ww...') #7 {main} thrown in /home/vhosts/www.zhouhaibing.com/system/database/drivers/mysql/mysql_driver.php on line 91