Fixed bug #67199 mb_regex_encoding mishmash

ext/mbstring/php_mbregex.c

@@ -64,8 +64,8 @@ static void php_mb_regex_free_cache(php_mb_regex_t **pre)
 /* {{{ _php_mb_regex_globals_ctor */
 static int _php_mb_regex_globals_ctor(zend_mb_regex_globals *pglobals TSRMLS_DC)
 {
-	pglobals->default_mbctype = ONIG_ENCODING_EUC_JP;
-	pglobals->current_mbctype = ONIG_ENCODING_EUC_JP;
+	pglobals->default_mbctype = ONIG_ENCODING_UTF8;
+	pglobals->current_mbctype = ONIG_ENCODING_UTF8;
 	zend_hash_init(&(pglobals->ht_rc), 0, NULL, (void (*)(void *)) php_mb_regex_free_cache, 1);
 	pglobals->search_str = (zval*) NULL;
 	pglobals->search_re = (php_mb_regex_t*)NULL;