Warning: Undefined variable $categoryMap in C:\wwwroot\mingxingfang\pc\products.php on line 23

Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in C:\wwwroot\mingxingfang\pc\products.php:23 Stack trace: #0 {main} thrown in C:\wwwroot\mingxingfang\pc\products.php on line 23