Warning: Undefined array key "file" in C:\xampp\htdocs\mea-project-back\php\imagesUpload.php on line 7

Warning: Trying to access array offset on value of type null in C:\xampp\htdocs\mea-project-back\php\imagesUpload.php on line 7

Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in C:\xampp\htdocs\mea-project-back\php\imagesUpload.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\mea-project-back\php\imagesUpload.php on line 7