使用POST将表单数据发送到当前页面和另一个PHP页面同时发送

Question

I have seen another person ask this question in stack overflow but I did not get any clear answer/idea from 'his post' . I want to know whether there is a way of sending form data via POST to the current PHP page addstudio.php to verify the entered data & if the entered data is valid it gets redirected to the next PHP page getstudio.php .

To send the form data to the current page I used the following line:-

<form action = "<?php $_PHP_SELF ?>" method = "post">

This is just done to validate the form information and if the form is left blank then a message is displayed in the same PHP page, the code for this is shown below.

<?php
 $valid = true;
 $studioIdError = $studioNameError = $studioAddressError = $studioPCodeError = $studioTelNoError = "";
 if($_SERVER["REQUEST_METHOD"] == "POST"){
     if(empty($_POST["studioId"])){
         $studioIdError = " *This Field Cannot Be Empty";
         $valid = false;
     }
     if(empty($_POST["studioName"])){
         $studioNameError = " *This Field Cannot Be Empty";
         $valid = false;
     }
     if(empty($_POST["studioAddress"])){
         $studioAddressError = " *This Field Cannot Be Empty";
         $valid = false;
     }
     if(empty($_POST["studioPCode"])){
         $studioPCodeError = " *This Field Cannot Be Empty";
         $valid = false;
     }
     if(empty($_POST["studioTelNo"])){
         $studioTelNoError = " *This Field Cannot Be Empty";
         $valid = false;
     }
 }
?>

To the above code I want to know if there is a way I can get the getstudio.php page to run when $valid = true .

I cannot use the code include 'getstudio.php'; because I want getstudio.php to run on a seperate page.

I cannot use the code header("Location:getstudio.php");exit(); to run either because the values in the global array $_POST[] is not sent to the PHP page like it is when the page is called directly from the form (Eg:- <form action = 'getstudio.php' method = 'post'> ).

Is there a way of running the getstudio.php page while sending the values stored in the $_POST[] array to the getstudio.php page when $valid = true ?

Answer 1

You have a few options.

1. Use AJAX to validate the form; then, if valid, do the submit.
2. Store the data somewhere client-side or server-side between pages (cookies or sessions).
3. Send a specially-crafted html that makes the browser to mimic a user sending a form. [ugly, the user sees a redraw]
4. Keep both validation and processing in the same page (why separate?).

In any case don't forget to re-validate before acting upon user data, unless absolutely sure the data can't be affected by a user (in the list above, only when storing data in a session, and still not recommended). Then, if validating again anyways, why bother with a separate page?

Answer 2

So as i understand you want to send Data first Addstudio.php than Getstudio.php but you want second one with redirection.

Make your HTML like this :

<form action="getstudio.php" method="POST">
    <!-- etc -->
</form>

Make your Javascript like this (include jQuery):

$(".your-form-class").on('submit',function(evt){
    evt.preventDefault();
    var instance = $(this);
    var formData = new FormData($(".your-form-class")[0]);
    $.ajax({
        type:"POST",
        data:formData,
        url:"addstudio.php",
        success:function(response){
            instance.submit();
        }
    });
});

Answer 3

Here is your current page

<?php
 $_POST["studioName"] = 'testdata';
 $valid = true;

 if(empty($_POST["studioName"])){
   $studioNameError = " *This Field Cannot Be Empty";
   $valid = false;
 }

// send data to getstudio.php if valid 
if($valid){  ?>
    <form method="post" action="getstudio.php" id="senddata">
      <input type="hidden" name="postdata" value="<?php print_r($_POST); ?>">  
    </form> 
<script>
    document.getElementById("senddata").submit();
</script>
<?php  } ?>

Here is your getstudio.php file to receive validated post data

<?php
  echo '<pre>';

  print_r($_POST['postdata']);

  die;