Question

In my html page, i have links like this

<table width="100%" border="0" cellspacing="4" cellpadding="4">
          <tr>
            <td><a href="ApplicationRegister.php?plan=trial"><img src="images/box4.png" width="230" height="300" /></a></td>
            <td><a href="ApplicationRegister.php?plan=plan1"><img src="images/box1.png" width="230" height="300" /></a></td>
            <td><a href="ApplicationRegister.php?plan=plan2"><img src="images/box2.png" width="230" height="300" /></a></td>
            <td><a href="ApplicationRegister.php?plan=plan3"><img src="images/box3.png" width="230" height="300" /></a></td>
          </tr>
        </table>

When i click on any one of the image, it will go to ApplicationRegister.php page with plan= corresponding values.

In my ApplicationRegister.php i have a registration form

<form action="emailconfirmation.php" method="post" name="form1" id="form1"  onsubmit="return Validate();">
    Company Name: 
        <input type="text" name="CompanyName" style="width:230px; height:20px;" /><br /><br />
    Company E-mail : 
    <input type="text" name="Companyemail" style="width:230px; height:20px;" /><br /><br />
     Company Contact <input type="text" name="CompanyContact" style="width:230px; height:20px;" /><br /><br />
     Company Address: <input type="text" name="CompanyAddress" style="width:230px; height:20px;" /><br /><br />
     <input type="hidden" name="form_submitted" value="1"/> 
     <input type="submit" value="REGISTER" name="submit" />
                    </form>

In this page it should take the value from url like plan=trail or plan1… whatever there in the url. then while submitting all the values should be submitted along with these form data.

How to achieve this? Please help.

Answer 1

First, you need to sanitize the plan input:

<?php
    $plan = @$_GET['plan'];
    $plan = +$plan; #convert to number
?>

Just add another hidden field containing that value

<form action="emailconfirmation.php" method="post" name="form1" id="form1" onsubmit="return Validate();">
    ...
    <input type="submit" value="REGISTER" name="submit" />
    <input type="hidden" name="plan" value="<?php echo $plan ?>"/> 
</form>

Another option would be to add it as a get parameter to the action:

<form action="emailconfirmation.php?plan=<?php echo $plan ?>"
      method="post" name="form1" id="form1" onsubmit="return Validate();">
    ...
    <input type="submit" value="REGISTER" name="submit" />
</form>