Fatal error: Uncaught Error: Call to undefined function mysql_pconnect() in /var/www/html/classes/connectDB.php:11 Stack trace: #0 /var/www/html/classes/DAL.php(396): connectDB->connect() #1 /var/www/html/index.php(799): dal_phongban->getByID() #2 {main} thrown in /var/www/html/classes/connectDB.php on line 11