Fixed bug #68636 (setlocale no longer returns current value per category).

ext/standard/basic_functions.c

@@ -3708,6 +3708,7 @@ PHP_RINIT_FUNCTION(basic) /* {{{ */
 	ZVAL_UNDEF(&BG(strtok_zval));
 	BG(strtok_last) = NULL;
 	BG(locale_string) = NULL;
+	BG(locale_changed) = 0;
 	BG(array_walk_fci) = empty_fcall_info;
 	BG(array_walk_fci_cache) = empty_fcall_info_cache;
 	BG(user_compare_fci) = empty_fcall_info;
@@ -3756,12 +3757,14 @@ PHP_RSHUTDOWN_FUNCTION(basic) /* {{{ */
 
 	/* Check if locale was changed and change it back
 	 * to the value in startup environment */
-	if (BG(locale_string) != NULL) {
+	if (BG(locale_changed)) {
 		setlocale(LC_ALL, "C");
 		setlocale(LC_CTYPE, "");
 		zend_update_current_locale();
-		zend_string_release(BG(locale_string));
-		BG(locale_string) = NULL;
+		if (BG(locale_string)) {
+			zend_string_release(BG(locale_string));
+			BG(locale_string) = NULL;
+		}
 	}
 
 	/* FG(stream_wrappers) and FG(stream_filters) are destroyed

ext/standard/basic_functions.h

@@ -168,7 +168,8 @@ typedef struct _php_basic_globals {
 	HashTable putenv_ht;
 	zval  strtok_zval;
 	char *strtok_string;
-	zend_string *locale_string;
+	zend_string *locale_string; /* current LC_CTYPE locale (or NULL for 'C') */
+	zend_bool locale_changed;   /* locale was changed and has to be restored */
 	char *strtok_last;
 	char strtok_table[256];
 	zend_ulong strtok_len;

ext/standard/string.c

@@ -4343,27 +4343,31 @@ PHP_FUNCTION(setlocale)
 		if (retval) {
 			if (loc) {
 				/* Remember if locale was changed */
-				size_t len;
+				size_t len = strlen(retval);
 
-				if (BG(locale_string)) {
-					zend_string_release(BG(locale_string));
-				}
-				len = strlen(retval);
-				if (len == loc->len && !memcmp(loc->val, retval, len)) {
-					BG(locale_string) = zend_string_copy(loc);
-				} else {
-					BG(locale_string) = zend_string_init(retval, len, 0);
+				BG(locale_changed) = 1;
+				if (cat == LC_CTYPE || cat == LC_ALL) {
+					if (BG(locale_string)) {
+						zend_string_release(BG(locale_string));
+					}
+					if (len == loc->len && !memcmp(loc->val, retval, len)) {
+						BG(locale_string) = zend_string_copy(loc);
+						RETURN_STR(BG(locale_string));
+					} else {
+						BG(locale_string) = zend_string_init(retval, len, 0);
+						zend_string_release(loc);
+						RETURN_STR(BG(locale_string));
+					}
+				} else if (len == loc->len && !memcmp(loc->val, retval, len)) {
+					RETURN_STR(loc);
 				}
-
 				zend_string_release(loc);
 			}
-			if (BG(locale_string)) {
-				RETURN_STR(zend_string_copy(BG(locale_string)));
-			} else {
-				RETURN_EMPTY_STRING();
-			}
+			RETURN_STRING(retval);
+		}
+		if (loc) {
+			zend_string_release(loc);
 		}
-		zend_string_release(loc);
 
 		if (Z_TYPE(args[0]) == IS_ARRAY) {
 			if (zend_hash_move_forward_ex(Z_ARRVAL(args[0]), &pos) == FAILURE) break;

ext/standard/tests/strings/bug68636.phpt

@@ -0,0 +1,21 @@
+--TEST--
+Bug #68636 (setlocale no longer returns current value per category).
+--SKIPIF--
+<?php
+if (substr(PHP_OS, 0, 3) == 'WIN') {
+    die('skip Not valid for windows');
+}
+if (setlocale(LC_ALL, "en_US.UTF8") !== "en_US.UTF8") {
+    die('skip available locales not usable');
+}
+?>
+--FILE--
+<?php
+var_dump(setlocale(LC_TIME, 'en_US.UTF8'));
+var_dump(setlocale(LC_NUMERIC, 'C'));
+var_dump(setlocale(LC_TIME, 0));
+?>
+--EXPECT--
+string(10) "en_US.UTF8"
+string(1) "C"
+string(10) "en_US.UTF8"