+ $result = '';
+
+ /* Divide up into text (highlight me) and tags (don't touch) */
+ $chunks = preg_split('/(<[^>]+>)/', $text, 0, PREG_SPLIT_DELIM_CAPTURE);
+ foreach ($chunks as $i => $chunk) {
+ if ($i % 2 == 1) {
+ // odd: delimiter (tag)
+ $result .= $chunk;
+ } else {
+ // even: freetext between tags
+ $result .= preg_replace($pattern, '<strong>\\1</strong>', $chunk);
+ }
+ }