Libre expression

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /homepages/11/d189569012/htdocs/dayluck_racine/dayluck/general/include/connection_bdd/connection_bdd_glom2.php:3 Stack trace: #0 /homepages/11/d189569012/htdocs/dayluck_racine/dayluck/general/include/temps/la_date.php(49): include() #1 /homepages/11/d189569012/htdocs/dayluck_racine/dayluck/general/include/menu/menu_haut.php(48): include('/homepages/11/d...') #2 /homepages/11/d189569012/htdocs/dayluck_racine/dayluck/livre_or/livre_or.php(27): include('/homepages/11/d...') #3 {main} thrown in /homepages/11/d189569012/htdocs/dayluck_racine/dayluck/general/include/connection_bdd/connection_bdd_glom2.php on line 3