3v4l.org

run code in 300+ PHP versions simultaneously
<?php $content = 'chris kyle and keyser soze,john key, milton keynes ,keyboard symbols glossary, key west all inclusive resorts,free product key codes,list of all keyboard symbols,typing keyboard lessons, window 7 product key free,florida keys vacation packages'; for ($i = 0; $i<= 100; ++$i) { $result = preg_replace('/\s*([^,]+)\b\s*,?/', "<li>$1</li>\n", trim($content)); }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7

preferences:
208.51 ms | 406 KiB | 461 Q