3v4l.org

run code in 150+ php & hhvm versions
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<?php $color = array(4 => 'white', 6 => 'green', 11=> 'red'); foreach($color as $key=>$colo) { if ($colo[0]){ echo $key."is ".$colo;} }
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
4is white6is green11is red
Output for hhvm-3.10.0

Process exited with code 153.