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@ 2017-07-04T12:02:24Z

<?php

// $baz = 'baz';
function foo(&$var, $x) {
  echo $GLOBALS["baz"];
  $var =& $x;
}
$bar = 'bar';
foo($bar);

var_dump($bar);

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive preview

71.96 ms | 402 KiB | 5 Q