Merge branch 'PHP-8.1' into PHP-8.2

- PHP-8.1:
  Fix GH-10292 1st param of mt_srand() has UNKNOWN default on PHP <8.3

Author: kocsismate

NEWS

@@ -10,6 +10,8 @@ PHP                                                                        NEWS
 
 - Random:
   . Fix GH-10390 (Do not trust arc4random_buf() on glibc). (timwolla)
+  . Fix GH-10292 (Made the default value of the first param of srand() and
+    mt_srand() unknown). (kocsismate)
 
 - Standard:
   - Fixed bug GH-8086 (Introduce mail.mixed_lf_and_crlf INI). (Jakub Zelenka)

ext/random/random.stub.php

@@ -16,10 +16,10 @@
 
     function lcg_value(): float {}
 
-    function mt_srand(int $seed = 0, int $mode = MT_RAND_MT19937): void {}
+    function mt_srand(int $seed = UNKNOWN, int $mode = MT_RAND_MT19937): void {}
 
     /** @alias mt_srand */
-    function srand(int $seed = 0, int $mode = MT_RAND_MT19937): void {}
+    function srand(int $seed = UNKNOWN, int $mode = MT_RAND_MT19937): void {}
 
     function rand(int $min = UNKNOWN, int $max = UNKNOWN): int {}
 

ext/random/random_arginfo.h

@@ -0,0 +1,21 @@
+--TEST--
+GH-10292 (Made the default value of the first param of srand() and mt_srand() unknown
+--FILE--
+<?php
+
+try {
+    srand(mode: MT_RAND_MT19937);
+} catch (Error $e) {
+    echo $e->getMessage() . "\n";
+}
+
+try {
+    mt_srand(mode: MT_RAND_MT19937);
+} catch (Error $e) {
+    echo $e->getMessage() . "\n";
+}
+
+?>
+--EXPECT--
+srand(): Argument #1 ($seed) must be passed explicitly, because the default value is not known
+mt_srand(): Argument #1 ($seed) must be passed explicitly, because the default value is not known