3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2013-03-23T10:37:01Z

<?php
function doFoo(){ echo 'hi!'; }

$callable = 'doFoo';

var_dump( is_callable( $callable ) );
var_dump( is_string( $callable ) );

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_callable: documentation ( source)

preferences:dark modelive preview

38.65 ms | 402 KiB | 5 Q