Question

I have a submit buttom like this:

<?php
   echo "<form id='abottom' method='post'>
         <button name='".$row3[$ww]."' id='".$row3[$ww]."' type='button'>More Details</button>
         <input type='hidden' name='action' value='".$row3[$ww]."' />
         </form>";
?>

and ids are working right of the buttons of the table rows (by Firebug). But when I want to output $_POST in a query while loop, then no one of those works for me:

<?php
    echo $_POST[$row3[$ww]]." <br />";
    echo $_POST['$row3[$ww]']." <br />";
    echo $_POST[$row3['$ww']]." <br />";
    echo $_POST["$row3[$ww]"]." <br />";
    echo $_POST[$row3["$ww"]]." <br />";
    echo $_POST[$row3['".$ww."']]." <br />";
?>

Which one will be the right? Those above didn’t work for me.

  $row3 // is a fetch result of sql3
  $ww // is table rows name on which one is selected

Raw HTML output example:

<form name ='dets' method='POST'>
    <input class = 'showt' name ='6' id ='6' type='button' value= 'More Details'></input>
    <input type='hidden' name='data' value='6' />
    <noscript><input type='submit' value='Submit'></noscript>
</form>

Answer 1

Much better for debugging and finding the correct variable would be to use

<?php
    echo '<pre>';
    var_dump($_REQUEST);
    echo '</pre>';

to see which variables arrive at your script.

---

Update:

I think, what you need is:

<form method="post">
    <input type="hidden" name="data" value="<?php echo $row3[$ww]; ?>"/>
    <input type="submit" value="More Details"/>
</form>

<?php
    echo $_POST['data']];

And if you have several values in $row3 then add extra forms like this:

<form method="post">
    Second Data
    <input type="hidden" name="data" value="<?php echo $row4[$ww]; ?>"/>
    <input type="submit" value="More Details"/>
</form>

Always keep the name of the hidden input the same (data)!