[ASK]Cara mendeskripsikan script php yang di enkripsi pake base64_decode

<?php /* WARNING: This file is protected by copyright law. To reverse engineer or decode this file is strictly prohibited. */
$o="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";eval(base64_decode("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"));return;?>