3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2016-04-28T19:10:07Z

<?php

function foo(&$foo, $bar) {
    $bar = explode(',', $bar);
    foreach ($bar as $baz) {
        if (!array_key_exists($baz, $foo)) {
            $foo[$baz] = $baz;
        }
    }
}

$foo = [];
foo($foo, '');
foo($foo, 'foo,bar');
foo($foo, '');

var_dump($foo);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
explode: documentation ( source)

preferences:dark modelive preview

60.31 ms | 402 KiB | 5 Q