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

Add stubs for another batch of standard functions

Remove magic quotes legacy