Fatal error: Uncaught TypeError: mysqli_select_db(): Argument #1 ($mysql) must be of type mysqli, string given in /var/www/apps/classes/sql.class.php:162 Stack trace: #0 /var/www/apps/classes/sql.class.php(162): mysqli_select_db() #1 /var/www/apps/site/new_recherche_erica.php(7): sql->__construct() #2 {main} thrown in /var/www/apps/classes/sql.class.php on line 162