3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2017-06-30T17:26:28Z

<?php
function kv(& $a) {
    $b = $a;
    end($b);
    $kv = [$k = key($b), current($b)];
    unset($b); // TRICKY: We must unset $b before modifying $a to avoid copy-on-write for $a.
    unset($a[$k]);
    return $kv;
}

$a = [1, 2, 3, 4, 5, 6];
next($a); next($a);

echo current($a) . PHP_EOL;
var_dump($a);
var_dump(kv($a));
echo current($a) . PHP_EOL;
var_dump($a);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
end: documentation ( source)
key: documentation ( source)
next: documentation ( source)
current: documentation ( source)

preferences:dark modelive preview

27.52 ms | 402 KiB | 5 Q