3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mas = (object) array('first'=>1, 'second'=>2); function f($m){ $m['first'] = 3; var_dump($m); return 'Done!'; } var_dump($mas); echo '============'; f($mas); echo ('----------'); var_dump($mas);

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52.53 ms | 402 KiB | 5 Q