why does this echo just the value 1 and not 7?
Page1
<td class="BG_<?php echo $s; ?>"><input name="T_<?php echo $DPI; ?>" type="radio" value="7" <?php if ($C == 7) { echo "checked"; } ?>/></td>
Page2
echo " -- " . isset($_POST["T_$DPI"]) . "<Br>";
No obvious reason, so I'd check program logic. Perhaps some other form element carries the same name?
<form action="" method="post">
7-radio <input type="radio" value="7" name="rd" />
<br/>
1-text (replaces above one) <input type="text" value="1" name="rd" />
<br/>
<input type="submit" />
</form>
<div>
<?php
if (isset($_POST['rd']))
echo $_POST['rd'];
?>
Or perhaps you are referencing the wrong element because $DPI isn't the same for both pages?
What does $_POST look like when using print_r?
What does the actually produced html code look like?
What's $DPI on the second page?
The issue is i can't pass in a variable to my POST
So when i I do $POST['T_33'] it works for but when i do $POST['T_$DPI'] is fails even if $DPI has the value of 33
How can i get around this, i've thought of
$Val = "T" .$DPI;
echo " -- " . isset($POST[ . "'$Val'" . ]) . "<Br>";
but get a pharse error.
and even
echo " -- " . isset($POST[ "'T$DPI"]) . "<Br>";
but i get nothing.
Arrr
and now
$Val = "T_" .$DPI;
echo " -- " . isset($_POST[' . "$Val" . ']) . "<Br>";
But nothing echo's
take the isset away and it works, however the rows where there is no value has this
Notice: Undefined index: T_7541 in E:\wamp\www\admin\process.php on line 1
How can i get around that?