通过php中的复选框表单选择数组中的项目

Question

I tried to create a form from an array and make the items selectable and be able to collect items individually for processing as variables but i get blank screen when i do echo $_POST['citem1']

<?php
foreach($_SESSION['cart'] as $data1 => $data2)
{echo
'<input type = "checkbox" name = "citem1" value = "'.$data1.'"/> ' .  
 ' price:', $data2 . "<br>";}

?>

What I really want to do is to be able to select one or more of the items and put them in separate variables. Help please.

var_dump of $_SESSION=array (size=3)
'sugar' => string '989.32' (length=6)
'lolli' => string 'inquire' (length=7)
'caramel unreal' => string '00.00' (length=5)

Answer 1

The name of field is 'citem1', so you have to get this value with $_POST['citem1'].

To send array you have to name like 'citem1[]', and items will receive by PHP like array:

<?php
foreach($_SESSION['cart'] as $data1 => $data2)
{
echo
'<input type = "checkbox" name = "citem1[]" value = "'.$data1.'"/> ' .  
 ' price:', $data2 . "<br>";}

?>

Or, to send key=>value like this:

<?php
foreach($_SESSION['cart'] as $data1 => $data2)
{
echo '<input type = "checkbox" name = "'.$data1.'" value = "'.$data2.'"/> ' .  
' price:', $data2 . "<br>";
}

?>

But in this case you need to loop through $_POST, so a better way is:

<?php
foreach($_SESSION['cart'] as $data1 => $data2)
{
echo '<input type = "checkbox" name = "Item['.$data1.']" value = "'.$data2.'"/> ' .  
' price:', $data2 . "<br>";
}

?>

With name="Item[field]" you can loop through $_POST['Item'] and get key=>value.