Fixed bug #36134 (DirectoryIterator constructor failed to detect empty

directory names).

Author: Ilia Alshanetsky

NEWS

@@ -9,6 +9,8 @@ PHP                                                                        NEWS
   MYSQLI_TYPE_NEWDECIMAL and MYSQLI_TYPE_BIT. FR #36007. (Georg)
 - Fixed imagecolorallocate() and imagecolorallocatelapha() to return FALSE
   on error. (Pierre)
+- Fixed bug #36134 (DirectoryIterator constructor failed to detect empty 
+  directory names). (Ilia)
 - Fixed bug #36096 (oci_result() returns garbage after oci_fetch() failed). 
   (Tony)
 - Fixed bug #36071 (Engine Crash related with 'clone'). (Dmitry)

ext/spl/spl_directory.c

@@ -393,6 +393,12 @@ SPL_METHOD(DirectoryIterator, __construct)
 		return;
 	}
 
+	if (!len) {
+		php_set_error_handling(EH_NORMAL, NULL TSRMLS_CC);
+                zend_throw_exception_ex(spl_ce_RuntimeException, 0 TSRMLS_CC, "Directory name must not be empty.");
+                return;
+	}
+
 	intern = (spl_filesystem_object*)zend_object_store_get_object(getThis() TSRMLS_CC);
 	spl_filesystem_dir_open(intern, path TSRMLS_CC);
 	intern->u.dir.is_recursive = instanceof_function(intern->std.ce, spl_ce_RecursiveDirectoryIterator TSRMLS_CC) ? 1 : 0;