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run code in 150+ php & hhvm versions
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<?php function mysort($a,$b){ return strlen($b)-strlen($a); } $data = array("kaushik","kaushik is","kaushik is great","is","is great","great"); usort($data,'mysort'); // print_r($data); $current = ""; for($i=0;$i<count($data);$i++) { $current=$data[$i]; for($j=$i+1;$j<count($data);$j++) { $current=str_replace($data[$j],"",$current); } if ($current!="") { echo $data[$i]."\n"; } } ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
kaushik is great kaushik is is great kaushik great is