Dylan T. 9195c88670 ConsoleReader: Use proc_open()'s socket support to send commands back to the main server process (#5273) ...

Support for this was introduced in PHP 8.0, though not mentioned in any changelog: php/php-src#5777

This simplifies the subprocess handling considerably. However, there is a potential for problems if PHP generates any E_* errors, since these get written to STDOUT as well.
To avoid error messages being treated as a command, a hash is attached to each IPC message, seeded with an incrementing counter. This prevents error messages causing command replays or unintended commands.

Unfortunately, PHP doesn't support binding pipes other than stdin/stdout/stderr on Windows for the child process, so we have to use stdout for this. In the future, if it becomes possible, a dedicated pipe for the purpose should be introduced. We'd need something like php://fd/<number> to work on Windows.

2024-11-20 14:56:52 +00:00

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ConsoleReaderChildProcessUtilsTest.php

ConsoleReader: Use proc_open()'s socket support to send commands back to the main server process (#5273)

2024-11-20 14:56:52 +00:00