Index: ext/standard/file.c
===================================================================
--- ext/standard/file.c	(revision 287717)
+++ ext/standard/file.c	(working copy)
@@ -1364,16 +1364,25 @@
 PHPAPI int php_mkdir_ex(char *dir, long mode, int options TSRMLS_DC)
 {
 	int ret;
+#ifdef PHP_WIN32
+	char resolved_path_buff[MAXPATHLEN];
+#endif

 	if (PG(safe_mode) && (!php_checkuid(dir, NULL, CHECKUID_CHECK_FILE_AND_DIR))) {
 		return -1;
 	}

-	if (php_check_open_basedir(dir TSRMLS_CC)) {
+#ifdef PHP_WIN32
+	if (!VCWD_REALPATH(dir, resolved_path_buff)) {
 		return -1;
 	}
+#endif

-	if ((ret = VCWD_MKDIR(dir, (mode_t)mode)) < 0 && (options & REPORT_ERRORS)) {
+	if (php_check_open_basedir(resolved_path_buff TSRMLS_CC)) {
+		return -1;
+	}
+
+	if ((ret = VCWD_MKDIR(resolved_path_buff, (mode_t)mode)) < 0 && (options & REPORT_ERRORS)) {
 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
 	}

Index: win32/readdir.c
===================================================================
--- win32/readdir.c	(revision 287717)
+++ win32/readdir.c	(working copy)
@@ -25,9 +25,15 @@
 	char *filespec;
 	HANDLE handle;
 	int index;
+	char resolved_path_buff[MAXPATHLEN];

-	filespec = (char *)malloc(strlen(dir) + 2 + 1);
-	strcpy(filespec, dir);
+
+	if (!VCWD_REALPATH(dir, resolved_path_buff)) {
+		return NULL;
+	}
+
+	filespec = (char *)malloc(strlen(resolved_path_buff) + 2 + 1);
+	strcpy(filespec, resolved_path_buff);
 	index = strlen(filespec) - 1;
 	if (index >= 0 && (filespec[index] == '/' ||
 	   (filespec[index] == '\\' && (index == 0 || !IsDBCSLeadByte(filespec[index-1])))))
@@ -38,6 +44,7 @@
 	dp->offset = 0;
 	dp->finished = 0;

+
 	if ((handle = FindFirstFile(filespec, &(dp->fileinfo))) == INVALID_HANDLE_VALUE) {
 		DWORD err = GetLastError();
 		if (err == ERROR_NO_MORE_FILES) {
@@ -48,7 +55,7 @@
 			return NULL;
 		}
 	}
-	dp->dir = strdup(dir);
+	dp->dir = strdup(resolved_path_buff);
 	dp->handle = handle;
 	free(filespec);