Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1049] Unknown database 'ecole' in /var/www/html/ecole/connexion.php:12 Stack trace: #0 /var/www/html/ecole/connexion.php(12): PDO->__construct() #1 /var/www/html/ecole/etudiantDAO.php(4): include('...') #2 /var/www/html/ecole/etudiant.php(3): EtudiantDAO::listerEtudiants() #3 {main} thrown in /var/www/html/ecole/connexion.php on line 12