ext/intl: expose dateformat UDAT_PATTERN constant.

Close GH-12258

Author: devnexen

NEWS

@@ -8,6 +8,9 @@ Core:
 DOM:
   . Added DOMNode::compareDocumentPosition(). (nielsdos)
 
+Intl:
+  . Added IntlDateFormatter::PATTERN constant. (David Carlier)
+
 Standard:
   . Implement GH-12188 (Indication for the int size in phpinfo()). (timwolla)
   . Partly fix GH-12143 (Incorrect round() result for 0.49999999999999994).

UPGRADING

@@ -82,6 +82,10 @@ PHP 8.4 UPGRADE NOTES
 10. New Global Constants
 ========================================
 
+- Intl:
+  . The IntlDateFormatter class exposes now the new PATTERN constant
+    reflecting udat api's UDAT_PATTERN.
+
 ========================================
 11. Changes to INI File Handling
 ========================================

ext/intl/dateformat/dateformat.stub.php

@@ -50,6 +50,11 @@ class IntlDateFormatter
      * @cvalue UDAT_SHORT_RELATIVE
      */
     public const RELATIVE_SHORT = UNKNOWN;
+    /**
+     * @var int
+     * @cvalue UDAT_PATTERN
+     */
+    public const PATTERN = UNKNOWN;
 
     /**
      * @var int

ext/intl/dateformat/dateformat_arginfo.h

@@ -7,12 +7,11 @@ intl
 <?php
 
 $datetime = new \DateTime('2017-05-12 23:11:00 GMT+2');
-static $UDAT_PATTERN = -2;
 
 try {
     new IntlDateFormatter(
 	    locale: 'en',
-	    dateType: $UDAT_PATTERN,
+	    dateType: IntlDateFormatter::PATTERN,
 	    timeType: 0,
 	    timezone: $datetime->getTimezone(),
     );