Online PHP editor | refs for 5b1GY

<?php $originalString = 'Her (III.1) was the age of 2 years and 11 months. (shoulder a 4/5)'; $findStringArray = array("age", "(III.1)", "2", "months", "4"); foreach($findStringArray as $key => $value) { $originalString = preg_replace('/(?<=^|[. ])'.preg_quote($value).'(?=[. ]|$)/i', "__", $originalString); } echo $originalString,"\n"; PHP_EOL;