dev-lang/php: backport GH-20528

MySQL connections are broken when using an IPv6 address enclosed in
square brackets.

Closes: https://github.com/gentoo/gentoo/pull/45016
Signed-off-by: Lothar Serra Mari <mail@serra.me>
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>

dev-lang/php/files/php-gh-20528-fix.patch

@@ -0,0 +1,81 @@
+From 9d71c1e0b60cd152a47528dbe514efc443fce920 Mon Sep 17 00:00:00 2001
+From: Remi Collet <remi@remirepo.net>
+Date: Thu, 20 Nov 2025 02:58:45 +0100
+Subject: [PATCH] Fix GH-20528: Regression breaks mysql connexion using an IPv6
+ address enclosed in square brackets
+
+---
+ ext/mysqli/tests/mysqli_connect_port.phpt | 31 +++++++++++++++++++++++
+ ext/mysqlnd/mysqlnd_connection.c          | 17 ++++++++++---
+ 2 files changed, 45 insertions(+), 3 deletions(-)
+ create mode 100644 ext/mysqli/tests/mysqli_connect_port.phpt
+
+diff --git a/ext/mysqli/tests/mysqli_connect_port.phpt b/ext/mysqli/tests/mysqli_connect_port.phpt
+new file mode 100644
+index 0000000000000..cb7fd1d8d1628
+--- /dev/null
++++ b/ext/mysqli/tests/mysqli_connect_port.phpt
+@@ -0,0 +1,31 @@
++--TEST--
++mysqli_connect() with port in host
++--EXTENSIONS--
++mysqli
++--SKIPIF--
++<?php
++require_once 'skipifconnectfailure.inc';
++?>
++--FILE--
++<?php
++    require_once 'connect.inc';
++
++	// using port / host arguments
++    if (!$link = mysqli_connect($host, $user, $passwd, $db, $port, $socket)) {
++        printf("Cannot connect to the server using host=%s, user=%s, passwd=***, dbname=%s, port=%s, socket=%s\n",
++            $host, $user, $db, $port, $socket);
++	}
++
++    mysqli_close($link);
++
++	// using port in host
++    if (!$link = mysqli_connect("$host:$port", $user, $passwd, $db, "1$port", $socket)) {
++        printf("Cannot connect to the server using host=%s, user=%s, passwd=***, dbname=%s, port=%s, socket=%s\n",
++            "$host:$port", $user, $db, "1$port", $socket);
++	}
++
++    mysqli_close($link);
++?>
++Done
++--EXPECTF--
++Done
+diff --git a/ext/mysqlnd/mysqlnd_connection.c b/ext/mysqlnd/mysqlnd_connection.c
+index d8e7304e9665f..8268034e8b798 100644
+--- a/ext/mysqlnd/mysqlnd_connection.c
++++ b/ext/mysqlnd/mysqlnd_connection.c
+@@ -553,13 +553,24 @@ MYSQLND_METHOD(mysqlnd_conn_data, get_scheme)(MYSQLND_CONN_DATA * conn, MYSQLND_
+ 			port = 3306;
+ 		}
+ 
+-		/* ipv6 addresses are in the format [address]:port */
+ 		if (hostname.s[0] != '[' && mysqlnd_fast_is_ipv6_address(hostname.s)) {
++			/* IPv6 without square brackets so without port */
+ 			transport.l = mnd_sprintf(&transport.s, 0, "tcp://[%s]:%u", hostname.s, port);
+ 		} else {
+-			/* Not ipv6, but could already contain a port number, in which case we should not add an extra port.
++			char *p;
++
++			/* IPv6 addresses are in the format [address]:port */
++			if (hostname.s[0] == '[') { /* IPv6 */
++				p = strchr(hostname.s, ']');
++				if (p && p[1] != ':') {
++					p = NULL;
++				}
++			} else { /* IPv4 or name */
++				p = strchr(hostname.s, ':');
++			}
++			/* Could already contain a port number, in which case we should not add an extra port.
+ 			 * See GH-8978. In a port doubling scenario, the first port would be used so we do the same to keep BC. */
+-			if (strchr(hostname.s, ':')) {
++			if (p) {
+ 				/* TODO: Ideally we should be able to get rid of this workaround in the future. */
+ 				transport.l = mnd_sprintf(&transport.s, 0, "tcp://%s", hostname.s);
+ 			} else {

dev-lang/php/php-8.3.28-r1.ebuild

@@ -136,6 +136,7 @@ BDEPEND="virtual/pkgconfig"
 PATCHES=(
 	"${FILESDIR}/php-8.3.9-gd-cachevars.patch"
 	"${FILESDIR}/php-8.4.14-libpcre2-testfix.patch"
+	"${FILESDIR}/php-gh-20528-fix.patch"
 )
 
 PHP_MV="$(ver_cut 1)"

dev-lang/php/php-8.4.15-r1.ebuild

@@ -133,6 +133,7 @@ BDEPEND="virtual/pkgconfig"
 
 PATCHES=(
 	"${FILESDIR}/php-8.4.14-libpcre2-testfix.patch"
+	"${FILESDIR}/php-gh-20528-fix.patch"
 )
 
 PHP_MV="$(ver_cut 1)"

dev-lang/php/php-8.5.0-r1.ebuild

@@ -133,6 +133,7 @@ BDEPEND="virtual/pkgconfig"
 
 PATCHES=(
 	"${FILESDIR}/php-8.4.14-libpcre2-testfix.patch"
+	"${FILESDIR}/php-gh-20528-fix.patch"
 )
 
 PHP_MV="$(ver_cut 1)"