"; echo $text."
"; $words = explode(' ', $text); foreach ($words as $word) { $bad= false; foreach ($badwords as $badword) { if (strlen($word) >= strlen($badword)) { $wordOk = false; for ($i = 0; $i < strlen($badword); $i++) { if ($badword[$i] !== $word[$i] && ctype_alpha($word[$i])) { $wordOk = true; break; } } if (!$wordOk) { $bad= true; break; } } } echo $bad ? 'beep ' : ($word . ' '); // Here $bad words can be returned and replace with *. }