Warning: Trying to access array offset on value of type null in D:\xampp\htdocs\faculty\gallery.php on line 154
Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in D:\xampp\htdocs\faculty\gallery.php:162
Stack trace:
#0 D:\xampp\htdocs\faculty\gallery.php(162): mysqli_num_rows(false)
#1 {main}
thrown in D:\xampp\htdocs\faculty\gallery.php on line 162
