Warning: Undefined global variable $_SESSION in C:\xampp\htdocs\nurimcocom\doc\admin\tab\mainslide.php on line 21

Warning: Trying to access array offset on value of type null in C:\xampp\htdocs\nurimcocom\doc\admin\tab\mainslide.php on line 21

Warning: Undefined variable $conn in C:\xampp\htdocs\nurimcocom\doc\admin\tab\mainslide.php on line 62

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in C:\xampp\htdocs\nurimcocom\doc\admin\tab\mainslide.php:62 Stack trace: #0 C:\xampp\htdocs\nurimcocom\doc\admin\tab\mainslide.php(62): mysqli_query(NULL, 'SELECT * FROM m...') #1 {main} thrown in C:\xampp\htdocs\nurimcocom\doc\admin\tab\mainslide.php on line 62