How can I troubleshoot and debug issues with functions not being called or executed in PHP files?

To troubleshoot and debug issues with functions not being called or executed in PHP files, you can start by checking for typos in the function name, ensuring that the function is defined before it is called, and verifying that the function is within the correct scope. Additionally, you can use error reporting functions like error_log() or var_dump() to identify any errors or issues with the function.

<?php
// Define the function
function myFunction() {
    // Function logic here
}

// Call the function
myFunction();
?>