ext/curl: Add HTTP/3 constants

NEWS

@@ -12,6 +12,10 @@ PHP                                                                        NEWS
   . Passing E_USER_ERROR to trigger_error() is now deprecated. (Girgias)
   . Fixed bug GH-15292 (Dynamic AVX detection is broken for MSVC). (nielsdos)
 
+- Curl:
+  . Added constants CURL_HTTP_VERSION_3 (libcurl 7.66) and CURL_HTTP_VERSION_3ONLY
+    (libcurl 7.88) as options for CURLOPT_HTTP_VERSION (Ayesh Karunaratne)
+
 - Date:
   . Constants SUNFUNCS_RET_TIMESTAMP, SUNFUNCS_RET_STRING, and SUNFUNCS_RET_DOUBLE
     are now deprecated. (Jorg Sowa)

UPGRADING

@@ -244,6 +244,8 @@ PHP 8.4 UPGRADE NOTES
   . curl_version() returns an additional feature_list value, which is an
     associative array of all known Curl features, and whether they are
     supported (true) or not (false).
+  . Added CURL_HTTP_VERSION_3 and CURL_HTTP_VERSION_3ONLY constants (available
+    since libcurl 7.66 and 7.88) as available options for CURLOPT_HTTP_VERSION.
 
 - Date:
   . Added static methods
@@ -881,6 +883,10 @@ PHP 8.4 UPGRADE NOTES
   . PHP_OUTPUT_HANDLER_PROCESSED.
   . PHP_SBINDIR.
 
+- Curl:
+  . CURL_HTTP_VERSION_3.
+  . CURL_HTTP_VERSION_3ONLY.
+
 - Intl:
   . The IntlDateFormatter class exposes now the new PATTERN constant
     reflecting udat api's UDAT_PATTERN.

ext/curl/curl.stub.php

@@ -3102,6 +3102,11 @@
  * @cvalue CURLINFO_RETRY_AFTER
  */
 const CURLINFO_RETRY_AFTER = UNKNOWN;
+/**
+ * @var int
+ * @cvalue CURL_HTTP_VERSION_3
+ */
+const CURL_HTTP_VERSION_3  = UNKNOWN;
 #endif
 
 #if LIBCURL_VERSION_NUM >= 0x074300 /* Available since 7.67.0 */
@@ -3547,6 +3552,14 @@
 const CURLOPT_QUICK_EXIT = UNKNOWN;
 #endif
 
+#if LIBCURL_VERSION_NUM >= 0x075800 /* Available since 7.88.0 */
+/**
+ * @var int
+ * @cvalue CURL_HTTP_VERSION_3ONLY
+ */
+const CURL_HTTP_VERSION_3ONLY  = UNKNOWN;
+#endif
+
 /**
  * @var int
  * @cvalue CURLOPT_SAFE_UPLOAD