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@ 2015-10-28T03:59:00Z

<?php

$var1 = "1";
$var2 = "2";

function foo() {
  var_dump($GLOBALS['var3'] ?? $GLOBALS['var2']);
}

foo();

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

43.9 ms | 402 KiB | 5 Q