Is there any CLA document? Who has the copyright of contributed codes?

Dear The PHP Group

Hello.

I'm thinking of contributing to PHP within my working hours.
Is there any CLA document?

My company has some legal check processes before contribution.
The legal department cares of "who has the copyright of contributed codes".

I suppose The PHP Group has the copyright, is it correct?

I've read the following documents, but I'm not sure about it.
https://www.php.net/license/index.php
https://www.php.net/license/contrib-guidelines-code.php
https://github.com/php/php-src/blob/master/CONTRIBUTING.md

Regards,

Masahiro Maruyama