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@ 2016-09-27T04:42:53Z

<?php

function withRef(&$zomg) {
    $zomg = 'hello world!';
}

$var = null;
var_dump($var);

withRef($var);
var_dump($var);

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

54.11 ms | 402 KiB | 5 Q