fdsfsdfhref';echo htmlspecialchars($str).'
';echo strip_tags($str);?>用strip_tags能把Html标签都去掉，然后调用truncate函数$array[$row['content_id']]['content_title']=truncate(strip_tags($row['content_title']),21);function truncate($string,$length,$append = true){    $string = trim($string);    $strlength = strlen($string);    if ($length == 0 || $length >= $strlength){        return $string;    }elseif ($length < 0){        $length = $strlength + $length;        if ($length < 0)        {            $length = $strlength;        }    }    if (function_exists('mb_substr')){        $newstr = mb_substr($string, 0, $length,"UTF-8");    }elseif (function_exists('iconv_substr')){        $newstr = iconv_substr($string, 0, $length,"UTF-8");    }else{      for($i=0;$i<$length;$i++){            $tempstring=substr($string,0,1);            if(ord($tempstring)>127){               $i++;               if($i<$length){                  $newstring[]=substr($string,0,3);                  $string=substr($string,3);               }            }else{               $newstring[]=substr($string,0,1);               $string=substr($string,1);            }         }      $newstr =join($newstring);    }    if ($append && $string != $newstr){        $newstr .= '...';    }    return $newstr;}