UnknownSec Bypass 403

: /var/www/html/ [ drwxr-xr-x ]
name : config.php <?php $conn = mysqli_connect("localhost:3306","root","vG!fM@*p!8#3P3bss(_%FE","stbookingslotdb") ; //$conn = mysqli_connect("localhost:3307","root","","stbookingslotdb") ; //$conn = mysqli_connect("localhost","root","","stbookingslotdb") ; if (!$conn) { echo "Failed to connect to MySQL: " . mysqli_connect_error(); } ?>