What tools or techniques can be used to debug PHP code effectively?

To debug PHP code effectively, developers can use tools like Xdebug, PHP Debug Bar, or PHPStorm's built-in debugger. These tools allow for step-by-step execution, variable inspection, and profiling of PHP code to identify and fix issues efficiently.

<?php
// Enable Xdebug for debugging
xdebug_start_trace();

// Your PHP code here

// Stop Xdebug tracing
xdebug_stop_trace();
?>