在$ _POST中重用$ _GET变量？

Question

I have my index.php page that sends values over to edit.php via $_GET/html link. I can see the values go, including the table ID I want to use using echo statements. The problem is that I need the specific ID value used in another form using a submit form($_POST). I've tried different approaches including SESSION, making the $ID = $_GET.... I'm pulling my hair out.

Here is the order of things:

//Edit link on index.php sends the id='summary_id', which works
<td align="center"><a href="edit.php?id=<?php echo $row['summary_id']?>">Edit</a></td>

//Edit.php grabs the variable and I set it to that variable
if(isset($_GET['id']))
echo "<pre>Value of GET \$_GET:</br>";print_r($_GET);echo"</pre>";  
    {
        $summary_id = $_GET['id'];
        $summary_id = $_POST['summary_id'];

But, when I try to use $summary_id in a form (using $_POST this time), I get no value. I'm not sure if what I'm trying to do is "legal". I've tried sending the summary_id as a hidden value in the form, but again, nothing is going through. I'm losing it after that initial $_GET.

Answer 1

You are doing wrong.You are overwriting the variable that is not available $_POST['summary_id']

if you really want to use post method use this

<form action="edit.php" method="POST">
<input type="hidden" value="<?php echo $row['summary_id'];?>" name="summary_id"/>
<input type="submit" value="EDIT"/>
</form>

or you can use header() to post the value