php検証フォーム

    <?php   
    class class_post  
    {  
       //            /      
       function fun_text1($num1,$num2,$str)  
       {  
        Return (preg_match("/^[a-zA-Z0-9]{".$num1.",".$num2."}$/",$str))?true:false;  
       }   
       //             
       function fun_text2($num1,$num2,$str)  
       {  
        return (preg_match("/^[0-9]{".$num1.",".$num2."}$/i",$str))?true:false;  
       }  
       //             
       function fun_font($num1,$num2,$str)  
       {  
        // preg_match("/^[\xa0-\xff]{1,4}$/", $string);  
        return (preg_match("/^([\x81-\xfe][\x40-\xfe]){".$num1.",".$num2."}$/",$str))?true:false;  
       }  
       //         
       function fun_status($str)  
       {  
        return (preg_match('/(^([\d]{15}|[\d]{18}|[\d]{17}x)$)/',$str))?true:false;  
       }  
     
       //        
       function fun_email($str){  
        return (preg_match('/^[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,4}$/',$str))?true:false;  
       }  
       //        
       function fun_phone($str)  
       {  
     
        return (preg_match("/^(((d{3}))|(d{3}-))?((0d{2,3})|0d{2,3}-)?[1-9]d{6,7}$/",$str))?true:false;  
       }  
       //      
       function fun_zip($str)  
       {  
        return (preg_match("/^[1-9]d{5}$/",$str))?true:false;  
       }  
       //  url    
       function fun_url($str)  
       {  
        return (preg_match("/^http://[A-Za-z0-9]+.[A-Za-z0-9]+[/=?%-&_~`@[]':+!]*([^<>""])*$/",$str))?true:false;  
       }  
     
       //                               
       function data_join(&$data)  
       {  
        if(get_magic_quotes_gpc() == false)  
        {  
         if (is_array($data))  
         {  
          foreach ($data as $k => $v)  
          {  
           $data[$k] = addslashes($v);  
          }  
         }  
         else  
         {  
          $data = addslashes($data);  
         }  
        }  
        Return $data; return (preg_match("/^(((d{3}))|(d{3}-))?((0d{2,3})|0d{2,3}-)?[1-9]d{6,7}$/",$str))?true:false;  
       }  
     
       //                          /      
       function data_revert(&$data)  
       {  
        if (is_array($data))  
        {  
         foreach ($data as $k1 => $v1)  
         {  
          if (is_array($v1))  
          {  
           foreach ($v1 as $k2 => $v2)  
           {  
            $data[$k1][$k2] = stripslashes($v2);  
           }  
          }  
          else  
          {  
           $data[$k1] = stripslashes($v1);  
          }  
         }  
        }  
        else  
        {  
         $data = stripslashes($data);  
        }  
        Return $data;  
       }  
     
       //                                   /      
       //         data_revert()，           
       function data_show(&$data)  
       {  
     
        if (is_array($data))  
        {  
         foreach ($data as $k1 => $v1)  
         {  
          if (is_array($v1))  
          {  
           foreach ($v1 as $k2 => $v2)  
           {  
            $data[$k1][$k2]=nl2br(htmlspecialchars($data[$k1][$k2]));  
            $data[$k1][$k2]=str_replace(" "," ",$data[$k1][$k2]);  
            $data[$k1][$k2]=str_replace(" ","<br> ",$data[$k1][$k2]);  
           }  
          }  
          else  
          {  
           $data[$k1]=nl2br(htmlspecialchars($data[$k1]));  
           $data[$k1]=str_replace(" "," ",$data[$k1]);  
           $data[$k1]=str_replace(" ","<br> ",$data[$k1]);  
          }  
         }  
        }  
        else  
        {  
         $data=nl2br(htmlspecialchars($data));  
         $data=str_replace(" "," ",$data);  
         $data=str_replace(" ","<br> ",$data);  
        }  
        Return $data;  
       }  
    }  
    if (is_array($data))  
    {  
       foreach ($data as $k1 => $v1)  
       {  
        if (is_array($v1))  
        {  
         foreach ($v1 as $k2 => $v2)  
         {  
          $data[$k1][$k2]=nl2br(htmlspecialchars($data[$k1][$k2]));  
          $data[$k1][$k2]=str_replace(" "," ",$data[$k1][$k2]);  
          $data[$k1][$k2]=str_replace(" ","<br> ",$data[$k1][$k2]);  
         }  
        }  
        else  
        {  
         $data[$k1]=nl2br(htmlspecialchars($data[$k1]));  
         $data[$k1]=str_replace(" "," ",$data[$k1]);  
         $data[$k1]=str_replace(" ","<br> ",$data[$k1]);  
        }  
       }  
    }  
    else  
    {  
       $data=nl2br(htmlspecialchars($data));  
       $data=str_replace(" "," ",$data);  
       $data=str_replace(" ","<br> ",$data);  
    }  
    Return $data;  
    }  
    }  
    ?>