<?phprequire_once 'Zend/Filter/Interface.php';class MyFilter implements Zend_Filter_Interface{ public function filter($value){  $badlist = array("梨","草莓","蘋(píng)果");  for($i = 0;$i<count($badlist);$i++){   $value = str_replace($badlist[$i], "*", $value);  }  return $value; }}$filter = new MyFilter();$temp1 = "桔子真好吃";$temp2 = "我喜歡吃蘋(píng)果";$temp3 = "梨也不錯(cuò)，但我最喜歡吃的是草莓！";echo "內(nèi)容：".$temp1."<p>經(jīng)過(guò)過(guò)濾后為：";echo $filter->filter($temp1);echo "<p>";echo "內(nèi)容：".$temp2."<p>經(jīng)過(guò)過(guò)濾后為：";echo $filter->filter($temp2);echo "<p>";echo "內(nèi)容：".$temp3."<p>經(jīng)過(guò)過(guò)濾后為：";echo $filter->filter($temp3);echo "<p>";