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+--- Thread: Problem with creating a form dynamically (/showthread.php?tid=13320)
Problem with creating a form dynamically - El Forum - 11-18-2008
[eluser]browntown[/eluser]
Okay, I have a problem that's driving me nuts. Here's the situation:
I have a site where a user can submit an request for an estimate...the admin can then add line items and submit a proposal. The admin can also go back at a later time and add additional items by clicking a "add item" button. I'm using javascript to add additional rows.
So my the number of line items will change based on how many items the admin has added.
When I come back to the form I'm getting a number of "illegal offset" type of errors. My code is trying to use an array as a counter and I can't figure out why.
My form code looks like this:
Code:
<?
$form = array('class'=>'form', 'id'=>'frm_createInvoice');
$description = "description";
$amount = "amount";
$discount = array('name'=>'discount', 'id'=>'discount', 'value'=>$this->validation->discount, 'maxlength'=>'', 'length'=>'50', 'size'=>'50', 'style'=>'');
$percentage = array('name'=>'percentage', 'id'=>'percentage', 'value'=>$this->validation->percentage, 'maxlength'=>'3', 'length'=>'5', 'size'=>'4', 'style'=>'');
if($items){
$code .= $items;
}
else{
for($i=0; $i<=count($lineItems); $i++){
$$description{$i} = array('name'=>'description'.$i, 'id'=>'description'.$i, 'value'=>$lineItems[$i]['item'], 'maxlength'=>'', 'length'=>'50', 'size'=>'50', 'style'=>'');
$$amount{$i} = array('name'=>'amount'.$i, 'id'=>'amount'.$i, 'value'=>$lineItems[$i]['amt'], 'maxlength'=>'', 'length'=>'5', 'size'=>'4', 'style'=>'');
$totalAmount += $lineItems[$i]['amt'];
$code .="
<tr>
<td class='description' colspan='2'>".form_input($$description{$i})."</td>
<td class='dollar'>$</td>
<td class='amount'>".form_input($$amount{$i})."</td>
<td class='cents'>.00</td>
</tr>
";
}
}
$code .="
<tr id='lastRow'>
<td class='discount' colspan='2' style='text-align:right;'>
<div style='position:relative; float:left; width:49%; text-align:left;'><a href='#' id='btn_addItem'>Add item</a></div>
<div style='position:relative; float:right; width:49%;'>Discount:</div>
<div class='clearer'></div>
</td>
<td class='dollar'> </td>
<td class='amount'> ".form_input($percentage)."</td>
<td class='cents'>%</td>
</tr>
<tr>
<td class='total' colspan='2' style='text-align:right; font-size:160%;'>Total Due:</td>
<td class='dollar' style='font-size:160%;'>$</td>
<td class='amount' style='text-align:right; font-size:160%;'><div id='totalDue'>".$totalAmount."</div></td>
<td class='cents' style='font-size:160%;'>.00</td>
</tr>
";
$jobestimate = array('name'=>'jobestimate', 'id'=>'jobestimate', 'value'=>$this->validation->jobestimate, 'maxlength'=>'5', 'length'=>'5', 'size'=>'4', 'style'=>'');
?>The last instance of $i is an array? A var_dump of the last $i produces the following:
Code:
array(7) { ["name"]=> string(12) "description5" ["id"]=> string(12) "description5" ["value"]=> string(5) "mark7" ["maxlength"]=> string(0) "" ["length"]=> string(2) "50" ["size"]=> string(2) "50" ["style"]=> string(0) "" }Can someone explain why this is happening?
I apologize if this is unclear...please let me know if I can clarify anything.
Thanks!