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Notice: Undefined variable: conn in D:\xampp\htdocs\E-learning\view\layout\Modal\student\viewpoint.php on line 24

Fatal error: Uncaught Error: Call to a member function prepare() on null in D:\xampp\htdocs\E-learning\view\layout\Modal\student\viewpoint.php:24 Stack trace: #0 {main} thrown in D:\xampp\htdocs\E-learning\view\layout\Modal\student\viewpoint.php on line 24

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