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@ 2014-10-30T23:38:51Z

<?php
$a = [
  "\$pkgHandle",
  "\$appVersionRequired",
  "\$pkgVersion",
  "\$_SESSION",
  "\$_SESSION"
];


$found = [];

        $grepped = array_keys($a, '$_SESSION');
        if ($grepped) {
            $success = false;
            foreach ($grepped as $found_key) {
                $found[] = $a[$found_key];
            }
        }

var_dump($found);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_keys: documentation ( source)

preferences:dark modelive preview

40.44 ms | 402 KiB | 5 Q