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@ 2025-09-22T01:42:16Z

<?php

declare(strict_types=1);

function foo($x, &$y) {
    $y = $x ** 2;
    return $x * 2;
}

$a = 100;

var_dump([foo(5, $a), $a]);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

25.69 ms | 404 KiB | 5 Q