3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = Array( Array ( 0 => "http://www.asdfasfasasfdasfd.com" ), Array ( 0 => "http://www.asasdf.com" ) ); $result = call_user_func_array("array_merge", $input); var_export($result);

preferences:
37.04 ms | 402 KiB | 5 Q