How can debugging techniques be utilized to troubleshoot PHP code errors?

To troubleshoot PHP code errors, debugging techniques can be utilized by using tools like var_dump() or print_r() to display variable values, setting error_reporting() to display errors, and using try-catch blocks to handle exceptions. Additionally, using an IDE with built-in debugging tools can help pinpoint the source of errors more efficiently.

<?php
// Display variable values
$variable = "Hello";
var_dump($variable);

// Set error reporting to display errors
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Use try-catch block to handle exceptions
try {
    // code that may cause an error
} catch (Exception $e) {
    echo 'Caught exception: ',  $e->getMessage(), "\n";
}
?>