How can the use of Firebug help in debugging PHP and JavaScript code?

Firebug can help in debugging PHP and JavaScript code by providing a comprehensive set of tools for inspecting, debugging, and editing code in real-time. It allows developers to monitor network activity, debug JavaScript, track performance, and inspect HTML and CSS elements. By using Firebug, developers can easily identify and fix errors in their code, leading to more efficient and effective development.

<?php
// PHP code snippet
// Debugging PHP code using Firebug
// Example: Output a variable to the console
$variable = "Hello, Firebug!";
echo "<script>console.log('PHP Variable: " . $variable . "');</script>";
?>