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<?php $bitmask = bindec('0101') . "\n"; echo $bitmask; $bitmask |= bindec('0010'); var_dump(bitmask); ?>
Output for 7.1.0
5 Notice: A non well formed numeric value encountered in /in/1IbXQ on line 6 Notice: Use of undefined constant bitmask - assumed 'bitmask' in /in/1IbXQ on line 8 string(7) "bitmask"
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14
5 Notice: Use of undefined constant bitmask - assumed 'bitmask' in /in/1IbXQ on line 8 string(7) "bitmask"