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Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in C:\xampp\htdocs\SalaryShiv2\BACKUPS\save_salary - Copy.php:29 Stack trace: #0 {main} thrown in C:\xampp\htdocs\SalaryShiv2\BACKUPS\save_salary - Copy.php on line 29