<?php $low_relevancy_keys = array('guitar','bass'); $keywords_db = "bass guitar"; $pattern = '~\b' . implode('\b|\b', $low_relevancy_keys) . '\b~'; echo preg_match_all($pattern, $keywords_db); /****/ echo count(array_intersect(explode(' ', $keywords_db), $low_relevancy_keys));
You have javascript disabled. You will not be able to edit any code.