php dropdown menu population

Question

I\'m trying to write a php script that will populate a second drop down menu based on the selection of the a primary drop down menu. I would like to use jquery to do all the

Answer 1

Here's some code that should give you an idea of what you want to do:

HTML

    Illinois
    Indiana


    Please select a state...

PHP

 array( 'Chicago', 'Naperville', 'Decatur', 'Saint Charles' ),
        'IN' => array( 'Gary', 'Miller', 'Portage', 'Merrillville' )
    );

    print json_encode( $cities[ $_POST[ 'state' ] ] );
    exit;
?>

jQuery

jQuery(document).ready(function() {

    jQuery('#state').change(function() {
        jQuery.post(
            'some-url.php',
            {
                'state':jQuery('#state').val()
            },
            function(data, textStatus) {
                jQuery.each(data, function(index, value) {
                    jQuery('#city').append('' + value + '');
                });
            },
            'json'
        );
    });

});