How Can I Get Variables from $_POST if HTML Form Uses an Array?

Question

How can I get the variables from $_POST if I used an array in the html form?

I know this isn't correct, but it's my best guess:

$item = $_POST[$key]; $price = $_POST[$value];

<?php
// array begins

$database = array(
    'Sportscar'         => array(
            'price'     => 11.95,
            'shipping'  => 0.4,
            'ID'        => 1),

    'Diamonds'      => array( 
            'price'     => 44.99,
            'shipping'  => 0.10,
            'ID'        => 4),
            );

?>
<p>Select an item from the list.</p>

<form method="GET" action="add.php">

<select name="choices">

<? while(list($key,$value) = each($database)) {
echo "<option value='$key'>" . $key . " - " ; 

while(list($key,$value) = each($value)) { 
    echo money_format("$%i", $value);

echo "</option>"; }} echo "</select>

<input type='submit' value='Add to cart' />
</form>
?>

Filippos Karapetis · Accepted Answer · 2013-06-18 13:53:16Z

3

1) You're using GET in your form, not POST. Change this:

<form method="GET" action="add.php">

to:

<form method="POST" action="add.php">

2) With the change above, you'll get your value (i.e. the selected $key in your case) in $_POST['choices']

answered Jun 18, 2013 at 13:53

Filippos Karapetis

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2 Comments

Rabbitvillain Over a year ago

Thanks! How would I call the item and value separately?

Filippos Karapetis Over a year ago

You shouldn't have to submit the value of your select box... you could try obtaining the key you need in the server script, and load its associated value on the server script from the database again. This is also a security concern: what will happen if a user modifies your form and submits it with values that AREN'T in your database? You should never ever trust user input

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