Question

我有这个代码

第一个文件是一个获取数据并执行一些基本电子邮件验证的表单第二个文件获取所有数据并执行php验证，如果用户输入错误，则返回存储在数组中的错误消息。

我的问题是，如果没有错误并且错误数组为空，我如何显示表单的内容。

<?php
$error = $_GET['message'];


?>

<html>

      <head>

      <title>Form Validation</title>

      <script type="text/javascript">

             function validateEmail()

      {

         var email = document.getElementById('email').value;
         var reEmail = document.getElementById('reEmail').value;

         atpos = email.indexOf("@");

         dotpos = email.lastIndexOf(".");



         if (atpos < 1 || ( dotpos - atpos < 2 )) 

         {

            alert("Please enter correct email")

            document.getElementById('email').focus() ;


            return false;

         }

         if (email === reEmail){
            return true;
         }
         alert("emails don't match!");
         return false;





      }
      </script>

    </head>

      <body>

     <div>
         <?php

         if ($error == ""){

         }
         else{
            foreach ($error as $key => $value) {
               echo "<h1>". $value . "</h1>";


            }

         } 

         ?>
      </div>


      <form action="registerExec.php" method="post" name="myForm" onsubmit="return(validateEmail());">

         <table cellspacing="2" cellpadding="2" border="1">

            <tr>

               <td align="right">Name</td>

               <td><input type="text" name="name" /></td>

            </tr>

            <tr>

               <td align="right">Email</td>

               <td><input type="text" name="email" id="email" /></td>

            </tr>

            <tr>

               <td align="right">Retype Email</td>

               <td><input type="text" name="reEmail" id="reEmail" /></td>

            </tr>

            <tr>

               <td align="right">Zip Code</td>

               <td><input type="text" name="zip" /></td>

            </tr>

             <tr>

               <td align="right">Country</td>

               <td>

                  <select name="country">

                     <option value="-1" selected>[choose yours]</option>

                     <option value="1">USA</option>

                     <option value="2">UK</option>

                     <option value="3">INDIA</option>

                  </select>

               </td>

            </tr>

             <tr>

               <td align="right"></td>

               <td><input type="submit" value="Submit" /></td>

            </tr>

            </table>

      </form>

    </body>

</html>

第二档：

<?php
$email = $_POST['email'];
$zip = $_POST['zip'];
$name = $_POST['name'];
$message = array(" ");
$goodjob = 'goodjob';

if ($email == "" || $zip == "" || $name ==""){

    array_push($message, "Email, Zip, Name should not be empty!");
    // chedk if any of these fields is empty

}

if ($name != ""){
        if (is_numeric($name)) {
            array_push($message, "don't include numberss in name");

        }
    }

if (is_numeric ($zip) ){


} else {
    array_push($message, "zip is not a number!");
}

if (strlen($zip) != 5){
    array_push($message, "Wrong Zip!");
}



$finalmessage =  http_build_query(array('message' => $message));
header("Location: http://localhost/register/classexercise.php?".$finalmessage);

?>

Answer 1

在这里，试试这个，让我知道你是否期待别的东西。

    <?php
$error = $_GET['message'];
?>
<html>
<head>
  <title>Form Validation</title>
  <script type="text/javascript">
   function validateEmail(){
     var email = document.getElementById('email').value;
     var reEmail = document.getElementById('reEmail').value;
     atpos = email.indexOf("@");
     dotpos = email.lastIndexOf(".");

     if (atpos < 1 || ( dotpos - atpos < 2 )) 
     {
        alert("Please enter correct email")
        document.getElementById('email').focus() ;
        return false;
     }
     if (email === reEmail){
        return true;
     }
     alert("emails don't match!");
     return false;
  }
  </script>

</head>
  <body>

  <div>
     <?php
     if ($error == ""){
     }
     else{
        foreach ($error as $key => $value) {
           echo "<h1>". $value . "</h1>";
        }
     } 

     ?>
     </div>

  <form action="registerExec.php" method="post" name="myForm" onsubmit="return(validateEmail());">

     <table cellspacing="2" cellpadding="2" border="1">

        <tr>
           <td align="right">Name</td>
           <td><input type="text" name="name" /></td>
        </tr>
        <tr>
           <td align="right">Email</td>
           <td><input type="text" name="email" id="email" /></td>
        </tr>
        <tr>
           <td align="right">Retype Email</td>
           <td><input type="text" name="reEmail" id="reEmail" /></td>
        </tr>

        <tr>
           <td align="right">Zip Code</td>
           <td><input type="text" name="zip" /></td>
        </tr>
         <tr>
           <td align="right">Country</td>
           <td>
              <select name="country">
                 <option value="-1" selected>[choose yours]</option>
                 <option value="1">USA</option>
                 <option value="2">UK</option>
                 <option value="3">INDIA</option>
              </select>
           </td>
        </tr>
         <tr>
           <td align="right"></td>
           <td><input type="submit" value="Submit" /></td>
        </tr>
        </table>
  </form>
</body>
</html>

您的PHP显示表单内容 -

<?php
$email = $_POST['email'];
$zip = $_POST['zip'];
$name = $_POST['name'];
$country = $_REQUEST['country'];
$message = array();
$goodjob = 'goodjob';

if ($email == "" || $zip == "" || $name ==""){

    array_push($message, "Email, Zip, Name should not be empty!");
    // chedk if any of these fields is empty
}

if ($name != ""){
        if (is_numeric($name)) {
            array_push($message, "don't include numberss in name");
        }
    }

if (!is_numeric ($zip)){
    array_push($message, "zip is not a number!");
}

if (strlen($zip) != 5){
    array_push($message, "Wrong Zip!");
}

if (empty($message)){
    array_push($message, $name);
    array_push($message, $email);
    array_push($message, $zip);
    $finalmessage =  http_build_query(array('message' => $message));
    header("Location: index.php?".$finalmessage);
} else {
    $finalmessage =  http_build_query(array('message' => $message));
    header("Location: index.php?".$finalmessage);
}
?>

如果错误数组为空，则返回表单中输入的数据

1 个答案: