php表单敏感字符过滤类

/** 
* 表单生成验证文件 
*/ 
$_form = new formHtmlFind(); 
class formHtmlFind{ 
        /** 
         * 输出表单函数 
         * $formKey  表单键 
         * $infoArray 更新时的原始信息数组 
         */ 
 
        public function formHtml($array,$infoArray='') 
        { 
                // 检测数组是否存在 
                if(emptyempty($array))return false; 
                $newform = null; 
                // 信息数组(更新信息) 
                $this->infoArray = !emptyempty($infoArray)?$infoArray:array(); 
                $this->array['class'] =  get_class_methods(get_class()); 
                foreach ($array as $key =>$arr) 
                { 
                        // 键值转换为纯英文 
                        $key = preg_replace("/[^a-z]/i",'',$key); 
                        // 生成表单 
                        $newform .= $this->outputForm($arr,$key); 
                } 
                // 输出表单 
                return $newform.$this->jsError(); 
        } 
        /** 
         * 生成表单函数 
         */ 
        private function outputForm($arr,$key) 
        { 
                $value = null; 
                if(emptyempty($arr))return false; 
                // input Type 
                $type   = $key; 
                // input NAME 
                $name   = trim($arr[0]); 
                // input 初始值 不包含多选,单选类 
                $value  = (!emptyempty($this->infoArray[$name]))? trim($this->infoArray[$name]):trim($arr[1]); 
                $value  = emptyempty($this->post[$name])? $value :trim($this->post[$name]); 
                // input Title 
                $title  = trim($arr[2]); 
                // 样式 
                $style  = trim($arr[3]); 
                if($key!=="hidden") 
                { 
                        $dt = "<dt>{$title}</dt><dd>"; 
                        // js错误提示 
                        $dd = "<tt id="J{$name}"></tt></dd>rn"; 
                } 
                return (!preg_match("/checkbox|select|radio/i",$key))? 
                $dt.$this->newInput($type,$name,$value,$style,$title).$dd: 
                $this->formSelect($type,$name,$arr[1],$title,$style); // 多选类 
        } 
        /** 
         * 提交数据检测 
         */ 
        public function postForm($array) 
        { 
                // 检测数组是否存在 
                if(emptyempty($array)||emptyempty($_POST))return false; 
                $this->post           =  $_POST; 
                $this->array['class'] =  get_class_methods(get_class()); 
                foreach ($array as $key =>$arr) 
                { 
                        // 键值转换为纯英文 
                        $key = preg_replace("/[^a-z]/i",'',$key); 
                        // 检测 注销file类表单 
                        if (!emptyempty($arr)&&'file' != $key)$newData[trim($arr[0])] = $this->postFind($arr,$key); 
                } 
                // 输出表单 
                if(!emptyempty($this->error)) 
                { 
                        return false; 
                } 
                else return $newData; 
        } 
        /** 
         * 生成表单 
         */ 
        private function newInput($type,$name,$value,$style,$title) 
        { 
                switch ($type) 
                { 
                        case 'text': 
                                // 单行文本 
                                return  "<input type="text" name="{$name}" value="{$value}" {$style}/>"; 
                                break; 
                        case 'password': 
                                //密码输入 
                                return "<input type="password" name="{$name}" {$style}/>"; 
                                break; 
                        case '': 
                                //多行文本 
                                return "<textarea name="{$name}" {$style}/>{$value}</textarea>"; 
                                break; 
                        case 'hidden': 
                                // 隐藏 
                                return "<input type="hidden" name="{$name}" value="{$value}" {$style}/>"; 
                                break; 
                        case 'file': 
                                // 文件上传 
                                return "<input type= "file"name="{$name}" {$style}/>"; 
                                break; 
                        case 'submit': 
                                // 提交 
                                return "<input type="submit" name="{$name}" value="$value" $style}/>"; 
                                break; 
                        default: 
                                return "{$type}类型错误!!!"; 
                                break; 
                } 
        } 
        /** 
         * 提交信息检测 
         * 错误返回error 
         */ 
        private function postFind($arr,$key) 
        { 
                if(emptyempty($arr))return false; 
                $name = $title =$error =$find =$standard =null; 
                // input NAME 
                $name     = trim($arr[0]); 
                // input Title 
                $title    = trim($arr[2]); 
                // 错误提示 
                $error    = trim($arr[4]); 
                // 检测类型 Y N 
                $find     = trim($arr[5]); 
                // 检测标准 
                $standard = trim($arr[6]); 
                // 
                if(!emptyempty($standard))$this->error .=$this->ck_split($standard,$name,$title,$find,$error); 
                // 转换为字符串 
                if(is_array($this->post[$name]))$this->post[$name] = implode(",",$this->post[$name]); 
                // 转义或其他转化 
                $KKarray = array(); 
                if(preg_match("/Y|N/is",$find)) 
                { 
                        $KKarray       = split("_", $find); 
                        // 转义或过滤 
                        $escape_filter = (!emptyempty($KKarray[1]))?'ck_'.$KKarray[1]:''; 
                        // 输出通过检测的合法数据 
                        $data          = ($escape_filter)?$this->$escape_filter($this->post[$name]):$this->post[$name]; 
 
                } 
                else  $data        = ""; 
                // 输出新的数据 
                return $data; 
        } 
        /** 
         * 多选类表单生成 
         */ 
        private function formSelect($type,$name,$value,$title,$style) 
        { 
                $outform = null; 
                // 触发更新和提交动作时的初始 
                $nowvalue = (!emptyempty($this->post[$name]))?$this->post[$name]:$this->infoarray[$name]; 
                // 兼容多选的识别,转为数组 
                if(!emptyempty($nowvalue))$valueArray = explode(",",$nowvalue); 
                // 选项标题 
                if(is_array($title)) 
                { 
                        array_unshift($title,'选择'); 
                        $titarray = array_values($title); 
                }else $titarray = explode("|",$title); 
                // 选项值 
                if(is_array($value)) 
                { 
                        array_unshift($value,'选择'); 
                        $valarray  = array_keys($value); 
                        if(emptyempty($title))$titarray = array_values($value); 
                } 
                else $valarray = explode("|",$value); 
                // 取消表单的初始默认值 
                if(!emptyempty($this->post)&&!emptyempty($this->infoArray))$value = preg_replace("/Y_/i",'',$value); 
 
                foreach ($valarray as $key =>$varl) 
                { 
                        // 非默认的识别 
                        if(!emptyempty($valueArray))$select   = (in_array($varl,$valueArray))?'Y':''; 
                        //  判断是否为默认 
                        else $select   = (eregi("Y_",$varl))? 'Y':''; 
 
                        if($key >'0') 
                        { 
                                $_title=($titarray[$key])? $titarray[$key]:$title; 
                                switch ($type) 
                                { 
                                        case 'select': 
                                                if('Y' == $select)$select = 'selected'; 
                                                $outform .=        sprintf("<option %s value="%s"/>%s</option>rn" 
                                                ,$select,preg_replace("/Y_/i",'',$varl),$_title); 
                                                break; 
                                        case 'radio': 
                                                if('Y' == $select)$select = 'checked'; 
                                                $outform .= sprintf("<label>%s<input %s type="radio" name="%s" value="%s" %s/></label>rn", 
                                                $_title,$select,$name,$varl,$style); 
                                                break; 
                                        case 'checkbox': 
                                                if('Y' == $select)$select = 'checked'; 
                                                $outform .= sprintf("<label>%s<input %s type="checkbox" name="%s[]" value="%s" %s/></label>rn",$_title,$select,$name,$varl,$style); 
                                                break; 
                                } 
                                $select =null; 
                        } 
                } 
                // 下拉选择 
                if($type =='select')$outform = sprintf('<select name="%s" %s>%s</select>',$name,$style,$outform); 
                return sprintf("<dt>%s</dt><dd>%s<tt id="J%s"></tt></dd>rn",$titarray[0],$outform,$name); 
        } 
        /** 
         * 表单验证 及全部 ck_类函数 
         */ 
        private function ck_split($standard,$name,$title,$find,$error) 
        { 
                //  非必填缺省跳过 
                if(eregi('N',$find) && emptyempty($this->post[$name]))return false; 
                // 必填缺省检测 
                if(eregi('Y',$find) && emptyempty($this->post[$name]))return "["J{$name}","$error"],"; 
                $t_error = null; 
                // 多项检测 
                $arr = explode(',',$standard); 
                // POST数据检测 
                if(!emptyempty($arr))foreach ($arr as $var) 
                { 
                        if(trim($var)!='') 
                        { 
                                switch ($this->post) 
                                { 
                                        case is_array($this->post[$name]): 
                                                // 数组类的检测 
                                                foreach ($this->post[$name] as $_var) 
                                                { 
                                                        $t_error.= ($this->ck_open($_var,trim($var)))?"":$error; 
                                                        if($t_error)break; 
                                                } 
                                                break; 
                                        default: 
                                                $t_error.= ($this->ck_open($this->post[$name],trim($var)))?"":$error; 
                                                break; 
                                } 
                                if($t_error)break; 
                        } 
                } 
                return ($t_error)? "["J{$name}","$t_error"],":""; 
        } 
        // 函数调用 
        private function ck_open($string,$str) 
        { 
                $functi = $this->ck_detected($str); 
                return ($this->$functi($string,$str))? true:false; 
        } 
        // 类型判断 
        private function ck_detected($str) 
        { 
                $detect = (eregi("^[a-zA-Z]*$",$str))? "{$str}Detect":'lengthDetect'; 
                if(!in_array($detect,$this->array['class'])) 
                { 
                        location('index.php',$ck,' Lack of function !!!'); 
                } 
                return $detect; 
        } 
        //-------------------------------------以下为检测函数可外部调用 
        // 长度 
        public function lengthDetect($string,$str){ 
                $len = split('-',trim($str)); 
                return (strlen($string) > ($len[0]-1) && strlen($string) < ($len[1]+1))? true:false; 
        } 
        // 价格 
        public function moneyDetect($str){ 
                return preg_match("/^(-|+)?d+(.d+)?$/",$str); 
        } 
        // 邮件 
        public function emailDetect($str){ 
                return preg_match("/^w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*$/", $str); 
        } 
        // 网址 
        public function urlDetect($str){ 
                return preg_match("/^http://[A-Za-z0-9]+.[A-Za-z0-9]+[/=?%-&_~`@[]':+!]*([^<>"])*$/", $str); 
        } 
        // 数字型 
        public function numDetect($str){ 
                return is_numeric($str); 
        } 
        // 中文 
        public function cnDetect($str){ 
                return preg_match("/^[x7f-xff]+$/", $str); 
        } 
        // 字母 
        public function enDetect($str){ 
                return preg_match("/^[A-Za-z]+$/", $str); 
        } 
        // 数字字母混合 
        public function numenDetect($str){ 
                return preg_match("/^([a-zA-Z0-9_-])+$/",$str); 
        } 
        // 电话号码 
        public function telDetect($str){ 
                return ereg("^[+]?[0-9]+([xX-][0-9]+)*$", $str); 
        } 
        // 敏感词 
        public function keyDetect($str){ 
                return (!preg_match("/$badkey/i",$str)); 
        } 
        //-----------------------------------------------------输出 
        // 字符替换 
        public function ck_filter($str){ 
                $str=(is_array($str))? implode(",",$str):$str; 
                $str=nl2br($str); //将回车替换为<br> 
                $str=htmlspecialchars($str); //将特殊字元转成 HTML 格式。 
                //$str=str_replace(array("　",'<? '),array(" ",'< ?'),$str); //替换空格替换为 
                return $str; 
        } 
        // 转义 
        function ck_escape($str) 
        { 
                if (!get_magic_quotes_gpc())return addslashes($str); 
                return $str; 
        } 
        // MD5加密 
        public function ck_md5($str){ 
                return  MD5($str); 
        } 
        // base64加密 
        public function ck_base64($str){ 
                return  base64_encode($str); 
        } 
        // 时间 
        function ck_time($str){ 
                // time_r() 来在公用函数文件 
                if(!is_numeric($str)) 
                { 
                        return time_r($str); 
                } 
                else return $str; 
        } 
        // 有条件注销(数字) 
        public function ck_cancel($str){ 
                return (!is_numeric($str))? $str:""; 
        } 
        // 无条件注销 
        public function ck_delete(){ 
                return null; 
        } 
        // js错误提示 
        private function jsError() 
        { 
                if(emptyempty($this->error))return false; 
                return  " 
                <script  language=javascript> rn var error = new Array(".trim($this->error,',')."); 
                        rn for (i=0; i < error.length; i++){ 
                        rn document.getElementById(error[0]).innerHTML=error[1]; 
                         }rn </script> 
                "; 
        } 
} 
 
// 演示: 
$form[1] =array( 
'text'=>array('title','','产品名称','size=40','产品名称不可缺少!','Y','cn,1-30'), 
'text1'=>array('categories','','产品名称','','','Y_base64'), 
'select'=>array('superiors','||1|2|Y_3','产品类别|选择|1|2|3','','必选项','Y'), 
'radio'=>array('superiors1','|1|Y_2|3','产品xun|产品1|产品2|产品3','','必选项','Y'), 
'checkbox'=>array('superiors2',array(1=>'11',2=>'22',3=>'33'),'','','必选项','Y'), 
'file'=>array('ddd','','文件'), 
); 
$form =array ( 
  'login' =>  
  array ( 
    'text' =>  
    array ( 
      0 => 'user', 
      1 => '', 
      2 => '用户名', 
      3 => 'size=20', 
      4 => '!', 
      5 => 'Y', 
      6 => 'numen,6-12', 
    ), 
    'password' =>  
    array ( 
      0 => 'pass', 
      1 => '', 
      2 => '密 码', 
      3 => 'size=22', 
      4 => '密码格式错误!', 
      5 => 'Y_md5', 
      6 => 'numen,6-12', 
    ), 
    'radio' =>  
    array ( 
      0 => 'time', 
      1 => '|7200|3600|1800', 
      2 => 'cookies有效时间|2小时|1小时|30分钟', 
      3 => '', 
      4 => '', 
      5 => 'N_delete', 
      6 => '', 
    ), 
  ), 
  ); 
 
// 表单提交效验 
$past = $_form->postForm($form['login']); 
$dd = array('title'=>'标题','categories'=>'类别'); 
// $dd 为已有的信息(如更新时的信息输出) POST数据位内部处理具有优先权
if(!emptyempty($past)) 
{ 
        echo "<pre>"; 
        print_r($past); 
        echo"</pre>"; 
} 
echo '<form method="POST" NAME="PostTopic" action="" enctype="multipart/form-data" style="margin:0px;">'; 
echo $_form->formHtml($form['login'],$dd); 
echo '<input type="submit" value="Y" name="B1"></form>';