find if post name appears in any keyword from string
$title = 'I like food'; $keywords = 'food, hamburger'; $title = explode(' ', $title); $keywords = explode(',', $keywords); $match = false; foreach ($title as $t) { foreach ($keywords as $k) { if ($t === $k) { $match = true; break; } } if ($match) { break; } } var_dump($match);