How can var_dump() be used to debug and understand the contents of PHP arrays like $_GET?

To debug and understand the contents of PHP arrays like $_GET, you can use the var_dump() function to display the structure and values of the array. This can help you identify any issues with the data being passed through the $_GET array and understand its contents more clearly.

// Using var_dump() to debug and understand the contents of the $_GET array
var_dump($_GET);