<?php error_reporting(-1); phpversion() >= "5.6.0" or die(); $a = 1; unset($a); $g = array_filter($GLOBALS, function($k) { return !in_array($k, ["g", "HTTP_RAW_POST_DATA", "GLOBALS", "_FILES", "_REQUEST", "_SESSION", "_ENV", "_SERVER", "_GET", "_POST", "_COOKIE", "argv", "argc"]); }, ARRAY_FILTER_USE_KEY); var_dump(count($g)); var_dump($g); var_dump(array_keys($g)); var_dump($g['a']);
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