user1613163 user1613163 - 1 year ago 62
PHP Question

retrieving array using $_REQUEST but not $_POST

I've been blinding myself with

-related problems on SO for days, still have no resolution to my problem (and it sure seems a lot of folks have issues with
) however, following-up my question (PHP arrays, iterating form input values) with some new info:

So ... I have a form (input.php) with about a dozen fields which are
ing no problem (to process.php), however within this form is a table for line items, to which the user can dynamically add rows as needed (the markup is a single table row, hardcoded; add'l rows added using jQuery).

So, while all the other input's values are
ing, the values in this table are not. If, in my process page I replace
for the table's values, they are retrieved, i.e.:

Pertinent excerpts from the form page:

<form id="invoiceData" name="invoiceData" method="POST" action="/html/process.php">
<!-- SNIP (invNum input, etc.) -->
<td class="date"><input type="text" class="datepicker" name="date[]" value="" /></td>
<td class="hours"><input type="text" class="hours" name="hours[]" value="" /></td>
<td class="rate"><input type="text" class="rate" name="rate[]" value="" /></td>
<td class="date-total"><input type="text" class="date-total" name="dateTotal[]" value="" /></td>
<td class="add-delete-row">
<a href="#" class="delete-row" title="Delete row">Delete</a>
<a href="#" class="add-row" title="Add a row">Add Row</a>

Pertinent excerpt from process.php:

if (isset($_POST['submit'])) {

// GET $_POST VALUES FROM input.php
$invNum = $_POST['invNum'];
$invDate = $_POST['invDate'];
$projNum = $_POST['projNum'];
// etc., a bunch more, getting them all ...

// ... but these, from the dynamic table within the form; $_REQUEST works but not $_POST
for ($i = 0; $i<count($_REQUEST['date']); $i++) {
$date = $_REQUEST['date'][$i];
$hours = $_REQUEST['hours'][$i];
$rate = $_REQUEST['rate'][$i];
$dateTotal = $_REQUEST['dateTotal'][$i];

echo "<div class=\"debug\">
<p>" . $i .". " . $date . ", " . $hours . ", " . $rate . ", " . $dateTotal . "</p>

... which returns:

  1. 2014-02-23, 1, 100.00, 100.00

  2. 2014-02-24, 2, 100.00, 200.00

  3. 2014-02-25, 3, 100.00, 300.00

So, why is
retrieving these values but not
? Anyway, is there any reason not to move forward using
(e.g., security)? What I'm after ultimately is best practices to accomplish this kind of task, I'm open to suggestion (but especially resolution to this week of confusion). I know I have a lot of homework to do re: php arrays.

Many thanks in advance

Answer Source

Sometime ago I found this and understood it to be a tactic to globally preclude sql injection:

// prevent SQL Injection in $_POST variables:
foreach ($_POST as $key => $value)  {
    $_POST[$key] = mysql_real_escape_string($value);

It seems to also be interfering with a $_POST array, so it's got to go. I'll be reading up on sql injection prevention now, but in the meantime, if anyone can suggest a modification to this so that it will not bust my array, please chime in.

Thanks everyone.

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