Fix cli server blocking on accept when using multiple workers

Fixes GH-9400
Closes GH-9693

Prevent potential buffer overflow for large value of php_cli_server_workers_max

Fixes #8989.
Closes #9000.

Fix #81496: CLI server logs wrong request method

Fix #73630: Built-in Weberver - overwrite $_SERVER['request_uri']

The built-in Webserver's `on_path`, `on_query_string` and `on_url`
callbacks may be called multiple times from the parse

Fix #73630: Built-in Weberver - overwrite $_SERVER['request_uri']

The built-in Webserver's `on_path`, `on_query_string` and `on_url`
callbacks may be called multiple times from the parser; we must not
simply replace the old values, but need to concatenate the new values
instead.

This appears to be tricky for `on_path` due to the path normalization,
so we fail if the function is called again.

The built-in Webserver logs errors during request parsing to stderr,
but this is ignored by the php_cli_server framework, and apparently the
Webserver does not send a resonse at all in such cases (instead of an
4xx). Thus we can only check that a request with an overly long path
fails.

Closes GH-7207.

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Fix CLI server worker support

If we create separate listening sockets in each worker using
SO_REUSEADDR, then an incoming connection may be load-balanced
to a process that is already

Fix CLI server worker support

If we create separate listening sockets in each worker using
SO_REUSEADDR, then an incoming connection may be load-balanced
to a process that is already busy, either due to a long-running
request, or because it is a recursive request (in which case we
would deadlock).

Instead, only create one listening socket, and only create worker
forks afterwards. This way the incoming request will be served
by one of the workers that is currently listening for an incoming
connection.

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Support ephemeral ports in debug server

Simplify error type filter

Closes GH-6049.

Support cli_server.color on Windows

On Windows, we have to check whether stdout is attached to a console,
and whether that console supports VT100 control codes.

Closes GH-5996

Fix #77932: File extensions are case-sensitive

The file extension to mime type mapping *must* not depend on the file
extension's case for case-insensitive file systems, and *should* not

Fix #77932: File extensions are case-sensitive

The file extension to mime type mapping *must* not depend on the file
extension's case for case-insensitive file systems, and *should* not
for case-sensitive file systems.

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Add stubs for SAPIs

Closes GH-5295.

Remove proto comments from C files

Closes GH-5758

Constify char * arguments of APIs

Closes GH-5676.

Fix expression warnings and break warnings

Close GH-5675.

Pass zend_string message to zend_error_cb

This makes the zend_error_cb API simpler, and avoid formatting
the same message in multiple places.

It should be noted that the passed

Pass zend_string message to zend_error_cb

This makes the zend_error_cb API simpler, and avoid formatting
the same message in multiple places.

It should be noted that the passed zend_string is always
non-persistent, so if you want to store it persistently somewhere,
you may still need to duplicate it.

The last_error_message is cleared a bit more aggressive, to make
sure it doesn't hang around across allocator life-cycles.

Closes GH-5639.

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Add quiet parameter to internal HTML entities API

In some places, we need to make sure that no warnings are thrown
due to unknown encoding. The error reporting code tried to avoid
th

Add quiet parameter to internal HTML entities API

In some places, we need to make sure that no warnings are thrown
due to unknown encoding. The error reporting code tried to avoid
this by determining a "safe charset", but this introduces subtle
discrepancies in which charset is picked (normally
internal_encoding takes precedence). Avoid this by suppressing
the warning in the first place.

While here, use the fallback logic to print error messages with
substitution characters more consistently, to avoid skipping
parts of the error message entirely.

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Code tweaks: Remove unneeded semicolons

Apply tidy formatting

Mostly reindent PHP scripts to spaces.

Fix #78880: Another bunch of spelling errors

Use RETURN_THROWS() during ZPP in main, sapi, win32, and Zend

Use clean shutdown on uncaught exception

Remove mention of PHP major version in Copyright headers

Closes GH-4732.

Introduce zend_stream_init_filename()

Avoid more ad-hoc initialization of zend_file_handle structures.

improvements to cli server

implement support for workers in cli-server on platforms supporting fork

Include the request method in CLI server logs