I am getting a submission error when I submit a form. The script initializes the object and the function $prod->process formats the form data and then outputs it to a string called $prod->results; I am tryign to get that output into a json array to output into a textarea on the form. Everythign works fine when I use the following code in the default of the switch:

PHP Code:
$response_array['status'] = 'success'
$response_array['message'] = 'Great Job'
But when I use the PHP shown below, It gives me the error 'There was an error submitting the form. Please try again.'

I have verified that $prod-process works correctly and the correct information is being put into $prod->results as well.

Not sure what is going on ... please help.

PHP Code:
include 'prod_creation.php';

$response_array = array(); 
        case empty(
$response_array['status'] = 'error';
$response_array['message'] = 'Error: Please enter a Product Name';
        case empty(
$response_array['status'] = 'error';
$response_array['message'] = 'Error: Please enter a Manufacturer';
        case empty(
$response_array['status'] = 'error';
$response_array['message'] = 'Error: Please enter a Product Category';
        case empty(
$response_array['status'] = 'error';
$response_array['message'] = 'Error: Please enter a Product Description';
        case empty(
$response_array['status'] = 'error';
$response_array['message'] = 'Error: Please enter a Package Contents';
$prod=new prod_creation($_POST['prod_name'], $_POST['manu'], $_POST['cat'], $_POST['prod_desc'], $_POST['spec_field'], $_POST['feat'], $_POST['pack_con'], $_POST['extra']);
$response_array['status'] = 'success';
$prod->process($_POST['prod_name'], $_POST['manu'], $_POST['cat'], $_POST['prod_desc'], $_POST['spec_field'], $_POST['feat'], $_POST['pack_con'], $_POST['extra']);
$response_array['message'] = $prod->results;


Here is the jquery:
            type: "POST",  
            url: "open_process.php",  
            data: $("#open_form").serialize(),  
            dataType: "json",  
            success: function(msg){ 
            error: function(){  
                $('textarea[name=output]').html("There was an error submitting the form. Please try again.");  
        //make sure the form doesn't post  
        return false;  
HTML Code:
<form id="open_form" method="POST" >
<table width="694">
        <td width="101"><label for"prod_name">Product Name: </label></td><td colspan="3"><input type="text" name="prod_name" size="74" /></td>
        <td><label for"manu">Manufacturer: </label></td><td width="246"><input type="text" name="manu" size="40"/></td>
        <td width="99"><label for"prod_num">Prod Number:</label></td> <td width="228"><input type="text" name="prod_num" size="15"/></td>
        <td><label for"cat">Category: </label></td><td colspan="3"><input type="text" name="cat" size="40"/></td>
<label for"prod_desc">Product Description: </label><br />
<textarea name="prod_desc" cols="115
" rows="5"></textarea><br /><br />

<label for"spec_field">Specifications: </label><br />
<textarea name="spec_field" cols="115" rows="5"></textarea><br /><br />

<label for"feat">Features: </label><br />
<textarea name="feat" cols="115" rows="5"></textarea><br /><br />

<label for"pack_con">Package Contents: </label><br />
<textarea name="pack_con" cols="115" rows="5"></textarea><br /><br />

<label for"extra">Extra code: </label><br />
<textarea name="extra" cols="115" rows="5"></textarea><br /><br />

<input name="submitForm" type="submit" value="Submit">&nbsp;<input type="reset" value="Reset" /><br /><br />

<label for"output">Output: </label><br />
<textarea name="output" cols="115" rows="5"></textarea>