Are there any specific PHP functions or libraries that can help manage the ordering process for limited products and prevent conflicts between customers?

To manage the ordering process for limited products and prevent conflicts between customers, you can use PHP functions like `file_put_contents` to update the available quantity of the product in a file or database whenever an order is placed. Additionally, you can use PHP sessions to track the number of items in a customer's cart and prevent them from ordering more than the available quantity.

// Example code to update the available quantity of a product in a file
$product_id = 123;
$available_quantity = 10;

// Update the available quantity after an order is placed
$new_quantity = $available_quantity - 1;
file_put_contents("product_$product_id.txt", $new_quantity);