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.

Store default parameter values of internal functions in arg info

Closes GH-5353. From now on, PHP will have reflection information
about default values of parameters of internal function

Store default parameter values of internal functions in arg info

Closes GH-5353. From now on, PHP will have reflection information
about default values of parameters of internal functions.

Co-authored-by: Nikita Popov <nikita.ppv@gmail.com>

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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

Fix return type of strval()

GH-5024

Add stubs for standard library

Closes GH-5017

Convert string|array union parameter types

Closes GH-4995

Remove support for mixing parameter order in implode()

Promote warnings to exceptions in password_*() functions

Return empty string instead of NULL in serialize().

Modifiy its return type accordingly and arginfo.

Add stubs for standard library