displaying form information php

Question

I want to display the information a user has submited on my registration forms, so I'm using

echo $_POST["name_of_field"], but for some reason the information isn't being displayed.

I have registerNewStudent2.php, registerNewStudent3.php, registerNewStudent4.php.

I want to display the registerNewStudent2.php forms in registerNewStudent4.php.

But from what I've read values in $_POST stay only for the next request.. So how can i do it? Here's my code:

registerNewStudent2.php

<form name="myForm" action="registerNewStudent3.php" onsubmit="return validate()" method="POST">
    <tr>
      <td>Nome</td>
      <td><input type="text" style="width:270px; color:gray" STYLE="color:gray" name="name"></td>
    </tr>

    <tr>
      <td>BI</td>
      <td><input type="text" style="width:270px; color:gray" name="BI";></td>
    </tr>

    <tr>
      <td>Curso</td>
      <td><input type="text" style="width:270px; color:gray" name="course"></td>
    </tr>
<input type="submit" value="Next">
</form>

registerNewStudent4.php

<?php
echo $_POST["name"];
echo $_POST["BI"];
echo $_POST["course"];
?>

Answer 1

The easiest way I've found would be to add a hidden field into the HTML with the PHP, like so:

<input type="hidden" name="name" value="<?php echo $_POST["name"]; ?>">

That way, when the form is submitted, a hidden variable will also be posted.

EDIT:

Alternatively, you can store them as $_SESSION variables, that will be accessible until the user navigates away from your website. Example: $_SESSION["name"]=$_POST["name"];

Answer 2

Save your data in session in the registerNewStudent2.php like this:

$_SESSION['name'] = $_POST['name'];

Then you can access those data in registerNewStudent4.php like this

echo $_SESSION['name'];

EDIT: In every page that you want to use session you must write first session_start() on the top of your page.