Why is it important to pay attention to case sensitivity when working with PHP arrays like $_POST?

Case sensitivity is important when working with PHP arrays like $_POST because PHP treats array keys as case-sensitive by default. This means that accessing $_POST['name'] is not the same as accessing $_POST['Name']. To avoid potential bugs and errors, it's crucial to pay attention to the case of array keys when working with $_POST data. To ensure consistency and prevent issues related to case sensitivity when working with $_POST, you can use the strtolower() function to convert all array keys to lowercase before accessing them. This way, you can standardize the case of array keys and avoid any potential discrepancies.

// Convert all keys in $_POST to lowercase
$_POST = array_change_key_case($_POST, CASE_LOWER);

// Access the 'name' key in a case-insensitive manner
$name = $_POST['name'];