'Warning: Cannot modify header information .....' Error ?

I am trying to set up the first part of an Application process where a payment is required so I am using Ecart, incidentally I will be requesting help via a support ticket once I have taken the project as far as I can.

( Ray might recall helping me back in May for a membership application using Ecart for 'lease-assn.org' which was similar to this project.)

I have so far:-
Created an Ecart object.
Added the 'Add to Cart' behaviour to the submit button of my Application form.
I have created a Display Cart page with a 'Checkout Button'
And last of all I have run the 'Checkout Wizard' to create the pages.

On testing I am submitting the application then clicking the 'Checkout button' and it directs to the checkout page with an error as follows: -

Warning: Cannot modify header information - headers already sent by (output started at E:\Domains\r\rtmf.org.uk-20218885\user\htdocs\checkout_f.php:138) in E:\Domains\r\rtmf.org.uk-20218885\user\htdocs\confirm_f.php on line 116.

I am pretty sure there aren't any white spaces between tags so what else can cause this error?

Subsequently I thought also because I do not require shipping it should skip this page As this is what happens in my previous project.

Ive attached the files I thought might be relevant.

Thanks in advance.

The code on lines 491 to 504 needs to be moved to the top of the page after line 18. I think that should solve the error and you won't actually see the shipping fields it will go straight to paypal.

That solved it. Thanks Ray. Now that is all working I have an advanced issue I need help with as follows.

The membership will be for a block of flats with a base fee of £10.00 and then £1.00 per flat in the block. For example a block of 50 flats will be £10.00 plus £50.00 totalling a cost of £60. I am unsure of the best way to set this up. It currently only has the £10.00 as the charge. I have the two columns in the DB table as 'base_charge' and 'price_per_flat'.

Thanks in advance.

Add another column to the shopping cart for "BaseCharge" and then bind the per flat price to the price in the cart. Then update the TotalPrice calculation
from: [Price] * [Quantity]
to: [BaseCharge] + ([Price] * [Quantity])

Thanks for this Ray. Im now having difficulties in feeding the correct amount into the 'Quantity column. I have tried binding the amount from the value given in the application form but it stops the cart from working.

This is what I have:-

the product (membership) is in a Database table which the following columns. [ item_id, item_name, base_charge, per_flat_price, quantity, meta_keywords, meta_description ] If I create a recordset using this table only its fine but the quantity value is wrong as it is always 1. The quantity needs to be determined by the 'number of flats' the user enters in the application form ( where the 'Add to Cart' behaviour is attached )

I have tried joining the DB table that holds the value and then binding the value to the 'Quantity' column but it seems to break the cart function and just enters the form into the database but doesn't direct to the 'cart display page'

My thinking is that it is trying to retrieve a value that isn't there yet possibly.


Any ideas!

Thanks in advance!

I have re-created the Cart and re-run the Checkout Wizard and I am now getting the following error when I 'SESSION' dump to the 'checkout_failure.php' page.

array(14) { ["WAENCRYPTEDRETURNUSED"]=> bool(false) ["WAENCRYPTEDRETURNSUCCESS"]=> bool(false) ["WAVT_membersapplication_282_Errors"]=> string(0) "" ["members_id"]=> int(37) ["fed_properties_id"]=> int(37) ["rtm_companies_id"]=> int(0) ["federation_membership_Items"]=> string(187) "1|WAECART|fed_membership|WAECART|RTMF Membership Application|WAECART||WAECART|0|WAECART|1|WAECART|1|WAECART|10|WAECART|144482601202159984|WAECART|0|WAECART|11|WAECART|1 fed_membership (1)" ["WAEC_ContinueRedirect"]=> string(35) "/federation/members_application.php" ["eCart_PPECO_System"]=> string(2) "US" ["WA_BillingAgreements"]=> array(0) { } ["PayPal_ECO_Token"]=> string(0) "" ["ECO_Auth_Request"]=> string(1431) "djoiner_api1.rtm-conference.org.ukFUM46UM86DP5DTH4AujtnJOrxiDW0WQ2M-4VewOYXb0xAbso9bKB478nxEWC4mmxLDGEARLq63.0http://www.rtmf.org.uk/pp_confirm_f.phphttp://www.rtmf.org.uk/cart.php?ppcancel=1SoleBillingSale11.0011fed_membership111Sale" ["ECO_Auth_Result"]=> string(2176) "2015-10-14T13:37:59ZFailure977471803c54eTransaction refused because of an invalid argument. See additional error messages for details.The totals of the cart item amounts do not match order amounts.10413Error63.018308778" ["fed_membership_Items"]=> string(187) "1|WAECART|fed_membership|WAECART|RTMF Membership Application|WAECART||WAECART|0|WAECART|1|WAECART|1|WAECART|10|WAECART|144482926266754904|WAECART|0|WAECART|11|WAECART|1 fed_membership (1)" }

Help Please.

I have attached relevant pages.

On confirm_f.php update line 56 to:
$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$fed_membership->DisplayInfo("TotalPrice") ."";

on line 59 change it to:
$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$fed_membership->DisplayInfo("Quantity") ." " . $fed_membership->DisplayInfo("Name") ."";

on line 65 update it to:
$WA_PP_ECO_Do_itemized[1][$nextIndex] = "1";

Then you will have to update the same three lines on pp_confirm_f.php lines 95, 98,107

Thanks Ray, before I try this. I am experiencing an error on my Laptop with insert record behaviour. When I either select from the window or double click a current behaviour, the bindings tab on the insert record pop-out window has disappeared. ( see attachment )

Any ideas?

Thanks Ray, that solved the error. Did you see my previous post (#5) regarding the Quantity value? I need help with this.

Regards

Can I see a copy of the add to cart page that has the wrong quantity getting added? I'll have to look at it to see what is wrong.