Better fix for bug #67072 with more BC provisions

Author: smalyshev

ext/standard/tests/serialize/bug67072_2.phpt

@@ -0,0 +1,84 @@
+--TEST--
+Bug #67072 Echoing unserialized "SplFileObject" crash - BC break fixes
+--FILE--
+<?php
+class MySplFileObject extends SplFileObject {}
+class MyArrayObject extends ArrayObject{ var $a = 1; }
+echo unserialize('O:15:"MySplFileObject":1:{s:9:"*filename";s:15:"/home/flag/flag";}');
+
+function testClass($className) 
+{
+    // simulate phpunit
+    $object = unserialize(sprintf('O:%d:"%s":0:{}', strlen($className), $className));
+    return $object;
+}
+
+class MyClass {}
+class MyClassSer implements Serializable {
+        function serialize() { return "";}
+        function unserialize($data) { }
+}
+class MyClassSer2 extends MyClassSer {
+}
+
+$classes = array('stdClass', 'MyClass', 'MyClassSer', 'MyClassSer2', 'SplFileObject', 'MySplFileObject', 
+                 'SplObjectStorage', 'FooBar', 'Closure', 'ArrayObject', 'MyArrayObject',
+                 'Directory'
+             );
+foreach($classes as $cl) {
+        var_dump(testClass($cl));
+}
+
+?>
+===DONE==
+--EXPECTF--
+Warning: Erroneous data format for unserializing 'MySplFileObject' in %s on line 4
+
+Notice: unserialize(): Error at offset 26 of 66 bytes in %s on line 4
+object(stdClass)#%d (0) {
+}
+object(MyClass)#%d (0) {
+}
+object(MyClassSer)#%d (0) {
+}
+object(MyClassSer2)#%d (0) {
+}
+
+Warning: Erroneous data format for unserializing 'SplFileObject' in %s on line 9
+
+Notice: unserialize(): Error at offset 24 of 25 bytes in %s on line 9
+bool(false)
+
+Warning: Erroneous data format for unserializing 'MySplFileObject' in %s on line 9
+
+Notice: unserialize(): Error at offset 26 of 27 bytes in %s on line 9
+bool(false)
+object(SplObjectStorage)#%d (1) {
+  ["storage":"SplObjectStorage":private]=>
+  array(0) {
+  }
+}
+object(__PHP_Incomplete_Class)#%d (1) {
+  ["__PHP_Incomplete_Class_Name"]=>
+  string(6) "FooBar"
+}
+
+Warning: Erroneous data format for unserializing 'Closure' in %s on line 9
+
+Notice: unserialize(): Error at offset 17 of 18 bytes in %s on line 9
+bool(false)
+object(ArrayObject)#%d (1) {
+  ["storage":"ArrayObject":private]=>
+  array(0) {
+  }
+}
+object(MyArrayObject)#1 (2) {
+  ["a"]=>
+  int(1)
+  ["storage":"ArrayObject":private]=>
+  array(0) {
+  }
+}
+object(Directory)#1 (0) {
+}
+===DONE==