- var_dump: documentation ( source)
- set_error_handler: documentation ( source)
<?php
set_error_handler(function($erroNo, $errorMessage) {
echo "woah. Got error:" . $errorMessage . PHP_EOL;
}, E_ALL | E_STRICT);
$undefinedThing["meep"] = "meep";
var_dump($undefinedThing);