[php-src] Issue #8019: wsdl 2.0 support

Issue: https://github.com/php/php-src/issues/8019 Comment Author: veewee @Ocramius, thanks for mentioning! We recently started a new soap organization that aims for a replacement of ext-soap: https://github.com/php-soap/ It is used as the SOAP implementation behind phpro/soap-client (and hopefully other projects in the future) Theoretically, it can do everything without ext-soap. However, it is far from there yet. (Especially encoding/decoding and WSDL parsing is missing - and will take a lot of time to get right from my side) I am not planning to add any SoapServer support at this moment. This leaves out goetas' libraries as basically the only ext-soapless replacement I know off, besides sending raw XML over HTTP yourself. Last time I checked, it was not as performant in encoding / decoding compared to the built-in SoapClient. I could be wrong here though! **Unbundling ext-soap seems like a quite drastical decision at this point:** There are MANY, MANY, MANY implementations relying on it to be there. The reason why is because it is pretty much the only tool that solves SOAP, in a (buggy but) quite decent way. Just search for soap on packagist: most of them use ext-soap. This list don't include any real business applications. At our company alone, I think we have around 50-100 projects relying on it. Removing or unbundling ext-soap will result in a lot of issues without any plug and play replacement. What would be the alternative for those users?