Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /home/iranp/domains/iran-parkour.ir/public_html/chat/lib/class/AJAXChatMySQLDataBase.php:25 Stack trace: #0 /home/iranp/domains/iran-parkour.ir/public_html/chat/lib/class/AJAXChatDataBase.php(35): AJAXChatDataBaseMySQL->connect() #1 /home/iranp/domains/iran-parkour.ir/public_html/chat/lib/class/AJAXChat.php(107): AJAXChatDataBase->connect() #2 /home/iranp/domains/iran-parkour.ir/public_html/chat/lib/class/AJAXChat.php(36): AJAXChat->initDataBaseConnection() #3 /home/iranp/domains/iran-parkour.ir/public_html/chat/lib/class/AJAXChat.php(28): AJAXChat->initialize() #4 /home/iranp/domains/iran-parkour.ir/public_html/chat/index.php(23): AJAXChat->AJAXChat() #5 {main} thrown in /home/iranp/domains/iran-parkour.ir/public_html/chat/lib/class/AJAXChatMySQLDataBase.php on line 25