Getting Array Value from Checkbox in PHP - php

Question

I am trying to build a list where user can select any checkbox and it can send all select values for the row to the next page.
Here is what I have:
first page:
<table border="0">
<tr>
<td>Check All | Uncheck All</td>
<td>Item Name</td>
<td>Item Description</td>
</tr>
<?php
if ($num_rows == 0) {
return "No Data Found";
}else{
while ($row = dbFetchAssoc($result)) {
$item_id = $row['item_id'];
$item_name = $row['item_name'];
$item_desc = $row['item_desc'];
$item_qty = $row['item_qty'];
$item_upc = $row['item_upc'];
$item_price = $row['item_price'];
$vendor_id = $row['vendor_id'];
?>
<tr>
<td> <input type="checkbox" name="area[]" value="<?=$item_id?>" /></td>
<td><input type="text" name="item_name[]" value="<?=$item_name?>"></td>
<td><input type="text" name="item_desc[]" value="<?=$item_desc?>"></td>
</tr>
<?php
}
}
?>
<tr><td colspan="3"><input type="submit"></td></tr>
</table>
</form>
Next Page:
<table>
<tr><td colspan="3"><?php "Total Item(s) selected: "; echo count($_POST['area']); ?></td></tr>
<?php
if(!empty($_POST['area'])) {
foreach($_POST['area'] as $check) {
echo "<tr><td>".$check."</td><td>".$_POST['item_name']."</td><td>".$_POST['item_name']."</td></tr>";
}
}
?>
</table>
I need to read the item_name and item_desc value as well. How do I get it?

Answer 1

You need the key:
if(!empty($_POST['area'])) {
foreach($_POST['area'] as $key => $check) {
echo "<tr><td>".$check."</td><td>".$_POST['item_name'][$key]."</td><td>".$_POST['item_desc'][$key]."</td></tr>";
}
}
As Marc said in his answer it would probably be better to set key's in your loop creating the input.
<?php
if ($num_rows == 0) {
return "No Data Found";
}else{
$counter = 0;
while ($row = dbFetchAssoc($result)) {
$counter++;
$item_id = $row['item_id'];
$item_name = $row['item_name'];
$item_desc = $row['item_desc'];
$item_qty = $row['item_qty'];
$item_upc = $row['item_upc'];
$item_price = $row['item_price'];
$vendor_id = $row['vendor_id'];
?>
<tr>
<td> <input type="checkbox" name="area[<?=$counter?>]" value="<?=$item_id?>" /></td>
<td><input type="text" name="item_name[<?=$counter?>]" value="<?=$item_name?>"></td>
<td><input type="text" name="item_desc[<?=$counter?>]" value="<?=$item_desc?>"></td>
</tr>
<?php
}
}
?>

Answer 2

foreach($_POST['area'] as $key => $check) {
echo $check . $_POST['item_name'][$key];
}
assuming that there's an exact 1:1 correspondence between your three submitted arrays. Remember that checkboxes which are NOT checked do NOT get submitted with the form, so this is most likely NOT true and this code will not work as written.