How can the use of error reporting and debugging tools improve PHP script functionality?

Error reporting and debugging tools can help identify and fix issues in PHP scripts by providing detailed error messages and highlighting problematic areas in the code. By using these tools, developers can quickly pinpoint errors, such as syntax errors, undefined variables, or runtime errors, and make the necessary corrections to improve script functionality.

// Enable error reporting and display errors
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Debugging tool to identify issues
var_dump($variable);

// Example of fixing an undefined variable error
$variable = 'Hello, World!';
echo $variable;