[php-src] Issue #7978: sockets extension compilation errors

Issue: https://github.com/php/php-src/issues/7978 Comment Author: ramsey As @cmb69 said, the PHP project doesn't maintain the *official* Docker images. They are "official" in that they are provided by Docker. However, the PHP project does release RCs of its patch releases. These are not pushed through normal distribution channels, but it's possible to detect their releases through the feed located here: https://qa.php.net/api.php?type=qa-releases&format=json In that feed, there are currently no RCs for any supported versions ("active": true) of PHP, so they list number as 0 in the release property for each. We also announce patch-level RCs on the internals mailing list: * https://news-web.php.net/php.internals/116828 * https://news-web.php.net/php.internals/116837