Question : AJAX post returning 500 Internal Server Error on Live Server

I created a script where a user can select from a variety of shipping options for an order from within a jQuery dialog box. The shipping rates are delivered via UPS & FedEx. Oddly enough, the script works fine on my development machine, but on the live server, Firebug returns a "500 Internal Server Error"

Here is what my jQuery looks like:

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jQuery("#select-shipping").click(function(){
// Open the dialog, start with the "loading page"
		$("#shipping-select").load('func/shipping_load.php').dialog({
			bgiframe: true,
			autoOpen: true,
			position: 'center',
			title: 'Select Shipping Method',
			width: 400,
			height: 400,
			modal: true,
			buttons: {
				'Apply Shipping': function() {
					var bValid = true;
					
					if (bValid) {
						var fship	=	$('input[name=shipping]:checked').val();
						var arr = fship.split('-');
						var shipPrice 	=	arr[1];
						var shipMeth 	=	arr[0];
						
						var subOrder 	=	$("#d_total").val();
						if ($('#customer-discount').val() != 'false') {
							var minDis = subOrder * ("."+$("#customer-discount").val());
							var nTotal = subOrder - minDis;
					
							var orderTotal = nTotal + parseFloat(shipPrice) + parseFloat($("#tax").val());  /* Order Total minus customer discount */
							
							$("#order_discount_amount").val("-"+minDis.toFixed(2));
						}
						else {
							var orderTotal = parseFloat(subOrder) + parseFloat(shipPrice) + parseFloat($("#tax").val());	/* Order Total, No Discount */
						}
						$("#order_total").val(orderTotal.toFixed(2)),
						$("#shipcost").val(parseFloat(shipPrice)),
						$("#shipping_method").html(shipMeth);
						
						$(this).dialog("destroy");
					}
				},
				'Close Window': function() {
					$(this).dialog("destroy");
					
				}
			},
			close: function() {
				$(this).dialog("destroy");
			}
		});
		
		// This portion actually runs the PHP code to get the rate results from UPS & FedEx
		$.ajax({
   			type: "POST",
   			url: "func/shipping_selection.php",
			data: "shipid=" + $("#customer-ship-id").val() + "&cartid=" + $("#cart_id").val(),
			success: function(html){
				$('#sLoader').fadeOut("fast");
				$("#sLookup").html(html);
			}
 		});
		
	});

The dialog opens a loader page (with gif) and that portion works fine. Once the AJAX post is complete (shipping_selection.php), it is supposed to update the "sLookup" div with the HTML from the shipping_selection.php page. Like I said, it works perfectly on my testing server, but fails on the live server. Both are running PHP 5.2xxxx.

Also, notice in the attached images that the 'shipping_selection.php' is actually working...rate results are returned from both UPS and FedEx, however something is failing on the AJAX success function.

Attachments:

shipping-loader.jpg (19 KB) (File Type Details)

Shipping Loader Dialog

shipping-firebug-500-internal.jpg (45 KB) (File Type Details)

Firebug Error with Returned Results

Answer : AJAX post returning 500 Internal Server Error on Live Server

Is this what you are looking for?

                       
         
           
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             function died($error) {
                // your error code can go here?
                    ??I WANT TO PUT HTML PAGE HERE WITH ERRORS
                ?>
                <b>all the html you want</b>
                <?
                echo "We are very sorry, but there were error(s) found with the form your submitted. ";
                echo "These errors appear below.<br /><br />";
                echo $error."<br /><br />";
                echo "Please go back and fix these errors.<br /><br />";
                die();
        }
        
        // validation expected data exists
        if(!isset($_POST['first_name']) ||
                !isset($_POST['last_name']) ||
                !isset($_POST['email']) ||
                !isset($_POST['telephone']) ||
                !isset($_POST['comments'])) {
                died('We are sorry, but there appears to be a problem with the form your submitted.');          
        }

           
         