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run code in 150+ php & hhvm versions
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<?php $string="M"; $strig=""; $strg=""; $stg=""; $last=array($strig,$strg,$string,$stg); echo Implode($last,""); foreach ($last as $i=>$value){ switch($last[$i]) { case 'k': case 'K': echo "k"; break; case 'm': case 'M': echo "k"; break; default: echo "o"; } } ?>
Output for 4.3.0 - 7.1.0
Mooko