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@ 2018-06-03T21:23:59Z

<?php

function foo($object) {
    $object = null;
}

function bar(&$object) {
    $object = null;
}

$o = new stdClass();
var_dump($o);
foo($o);
var_dump($o);
bar($o);
var_dump($o);

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

48.31 ms | 402 KiB | 5 Q