type error in jsonSerialize functions in many objects

[kaeverens]

SDK you're using (please complete the following information):

• Version 7.0.1

Describe the bug
in the method jsonSerialize, $json is initialised as a plain array []

4 lines later, you try to set $json->Organisations on it. https://github.com/XeroAPI/xero-php-oauth2/blob/master/lib/Models/Accounting/Organisations.php#L311

this fails because [] is not an object. it's an array.

sample error message:

[31-Jul-2024 13:43:16 UTC] PHP Fatal error:  Uncaught Error: Attempt to assign property "Organisations" on array in /home/crm/www/vendor/xeroapi/xero-php-oauth2/lib/Models/Accounting/Organisations.php:311
Stack trace:
#0 [internal function]: XeroAPI\XeroPHP\Models\Accounting\Organisations->jsonSerialize()
#1 /home/crm/www/php/api.php(370): json_encode(Array, 2097152)
#2 {main}
  thrown in /home/crm/www/vendor/xeroapi/xero-php-oauth2/lib/Models/Accounting/Organisations.php on line 311

To Reproduce
Steps to reproduce the behavior:

1. do something which causes jsonSerialize() to run.

Expected behavior
I expect it to just create the expected JSON and return it.

Additional context
if you change $json->Organisations to $json['Organisations'] that fixes the immediate problem, but you appear to have made the exact same mistake in other files as well (see Contacts.php in the same directory, line 344).

[github-actions]

PETOSS-497

[github-actions]

Thanks for raising an issue, a ticket has been created to track your request

[kaeverens]

I can see the same issue in many different places, all from the same single commit:

e93aa28