3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( "foo" => 1, "bar" => 0, "test"=> 1, );$mask = 0;$i = 0;foreach($array as $value){$mask |= $value << $i;$i++;}var_dump($mask);

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49 ms | 402 KiB | 5 Q