RFC: Permit trailing whitespace in numeric strings - At this point, PHP ignores whitespace at the beginning of a numeric string, that is, " 123" and "123" equivalent. But if the whitespace characters come at the end, then such a number is considered not valid. It is proposed to correct the injustice.
RFC: Deprecate and Remove Bareword (Unquoted) Strings - In current versions of PHP, using a string without quotes throws an error of the E_NOTICE level. It is proposed to throw E_WARNING in the nearest version, and then ParseError.
RFC: Deprecations for PHP 7.2 - Passed a vote on the list of functionalities on an obsolete ad: __autoload , $php_errormsg , create_function() , mbstring.func_overload , (unset) cast , parse_str() without second argument, gmp_random() , each() , assert() with a string argument, the $errcontext argument in the error handler.
Microsoft / tolerant-php-parser - At the moment, an experimental PHP parser for PHP from Microsoft. Intended for use in IDE, that is, where the code is obviously not complete, which means that the parser must be error resistant.
php-fig / http-message-util - A pair of interfaces with a set of HTTP constants status codes and HTTP methods.
php-enqueue / enqueue-dev - Components for working with message queues. Supports transports Amqp, Stomp, file system.