Online PHP editor | output for eZFDF

<?php $originalString = 'Her (III.1) was the age of 2 years and 11 months. (shoulder a 4/5)'; $findStringArray = array("age", "(III.1)", "2", "months", "4"); $words = explode(" ",$originalString); for($x = 0; $x<count($words); $x++) { foreach($findStringArray as $key => $value) { $originalString = preg_replace('/\b('.preg_quote($value).')\b/i', "__", $originalString); if ($words[$x] == $value) { $words[$x] = preg_replace('/\b('.preg_quote($value).')\b/i', "__", $words[$x]); } } } $newstring = implode(" ", $words); echo $newstring;