PHP pass variable through for loop into link

Question

i would like to pass a variable through a for loop into a link such that the loaded page passes information about the correct link. right now my code seems to be storing the last variable in the for loop and passing that onto the link. it means that the generated table in the link always references the final piece.

the code is:

    <?php foreach($result as $key => $result) :?>
    <?php session_regenerate_id(); $_SESSION['id'] = $result['id']; ?>
    <tr>
    <td><?php echo $result['id'] ?></td>
    <td><?php echo $result['date'] ?></td>
    <td><?php echo $result['name'] ?></td>
    <td><div class="btn-group" data-toggle="buttons"><a href="cpt.php?id=$_SESSION['id']" target="_blank" class="btn btn-warning btn-xs" rel="noopener">More details</a></div></td>
    </tr>
    <?php endforeach;?>

The point is the link should display more information about the id that the user clicks on. However it only ever shows data of the last id. I think this is because the $_session['id'] is just storing the final loop.

Why you have to use session here? Couldn't be a normal variable to store the id value? — Roby Raju Oommen
– Roby Raju Oommen, Commented Feb 11, 2022 at 15:38

CrankyGoon · Accepted Answer · 2022-02-11 15:36:32Z

2

You are overwriting the $result variable in your loop:

<?php foreach($result as $key => $result) :?>

Do something like this instead:

<?php foreach($result as $key => $value) :?>

Then in your link you should be able to do:

<a href="cpt.php?id=<?php echo $value['id'] ?>"

I don't see any reason to be using session in this loop, I would advise removing that. You certainly don't want to be regenerating the session ID inside of a loop that displays chunks of html.

answered Feb 11, 2022 at 15:36

CrankyGoon

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1 Comment

AE93 Over a year ago

wow thanks a lot! For others with a similar question, then use $_GET to call the variable in the other php script.

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