Use ZPP int|string and add ValueError for Windows codepages

Closes GH-5517

Use ZPP check for string|int|null arguments in array_column()

Remove the deprecated is_real() function

Closes GH-5506

Add get_debug_type() function

RFC: https://wiki.php.net/rfc/get_debug_type

Fix the default parameter values of stream_socket_client()

$timeout and $flags were mixed up

Mark $time argument of touch() as UNKNOWN as well

For some reason I thought that passing 0 is same as current time,
but that's not the case.

Mark fgets() argument as UNKNOWN

If no value is passed, this reads as much as necessary, not 1024
bytes.

Change parameter default to always available value

`SIGTERM` is only defined in ext/pcntl, and as such never available on
Windows. Moving the constant to ext/standard does not make much

Change parameter default to always available value

`SIGTERM` is only defined in ext/pcntl, and as such never available on
Windows. Moving the constant to ext/standard does not make much sense,
because that parameter is actually unused on Windows. Therefore, we
use the magic number `15` instead, what is also done in the PHP manual.

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Make touch() $atime parameter UNKNOWN

The actual default here is $time, not 0.

Mark rand/mt_rand args as UNKNOWN

The second argument should be mt_getrandmax(), not PHP_INT_MAX.
Additionally this function only accepts either zero or two arguments,
so err on the

Mark rand/mt_rand args as UNKNOWN

The second argument should be mt_getrandmax(), not PHP_INT_MAX.
Additionally this function only accepts either zero or two arguments,
so err on the side of being conservative and mark both UNKNOWN.

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Mark array_walk $userdata arg as UNKNOWN

It makes a difference whether this arg is not passed or is null.

Make stream_socket_enable_crypto() session stream nullable

Accept null context in stream_socket_(client|server)

Verify that all stubs have a return type

Generate function entries from stubs

If @generate-function-entries is specified in the stub file,
also generate function entries for the extension.

Currently limited to free fun

Generate function entries from stubs

If @generate-function-entries is specified in the stub file,
also generate function entries for the extension.

Currently limited to free functions only.

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Do not include the same stub multiple times

Closes GH-5322

Remove HAVE_REALPATH checks

We do not actually use realpath(), but a custom implementation.
Make sure the realpath() function is always available.

Closes GH-5290.

Add str_contains() function

RFC: https://wiki.php.net/rfc/str_contains

Closes GH-5179.

Add rand() to ext/standard stub

Remove restore_include_path()

Closes GH-5189

Add stubs for aliases

Closes GH-5187

Revert "Replace @param annotations with type declarations"

This reverts commit c31029f335ca1b453af799805c43c37e959ad555.

Replace @param annotations with type declarations

Fix arginfo

These parameters accept int|float, since they are parsed with
`Z_PARAM_NUMBER`.

Fix smaller issues with stubs

GH-5025