- implode: documentation ( source)
- explode: documentation ( source)
- preg_quote: documentation ( source)
- preg_replace: documentation ( source)
<?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', "__", $words[$x]);
}
}
$newstring = implode(" ", $words);
echo $newstring;