3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2016-10-10T21:43:57Z

<?php

function foo(&$str) {
    $str = 'xyz';
	return $str;
}

$o = "abc";
foo($o);
var_dump($o);
$o = "abc";
call_user_func('foo', $o);
var_dump($o);
$o = "abc";
call_user_func('foo', [$o]);
var_dump($o);

$a[] = "abc";
$a[] = "abc";
$a[] = "abc";
call_user_func('foo', array_slice($a, 0, 1));

var_dump($a);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_slice: documentation ( source)

preferences:dark modelive previewkey bindings

33.86 ms | 405 KiB | 5 Q