- var_dump: documentation ( source)
- base64_decode: documentation ( source)
<?php
$t = base64_decode("Z2UgaW1hZ2UtdGh1bWJuYWlsIiAJIHRpdGxlPSJI0MLTE38iICAJIHRpdGxlPSJI0MLTE38iICAJPjxpbWcgc3JjPSJkYXRhOmltYWdlL2dpZjtiYXNlNjQsUjBsR09EbGhBUUFCQUlBQkFBQUFBUC8vL3lINUJBRUFBQUVBTEFBQUFBQUJBQUVBUUFJQ1RBRUFPdyUzRCUzRCIgCSBhbHQ9IkFtYm94IGNvbnRlbnQucG5nIiAgCWNsYXNzPSJsenkgbHp5UGxjSGxkICIgCSAJZGF0YS1pbWFnZS1rZXk9IkFtYm94X2NvbnRlbnQucG5nIiAJZGF0YS1pbWFnZS1uYW1lPSJBbWJveCBjb250ZW50LnBuZyIgCSBkYXRhLXNyYz0iaHR0cDov");
echo 123;
var_dump(test($t));exit();