這是早上那個 Gallery 3 與 ZendGuardLoader 一起使用時的問題, 寫了一個小的 test case, 可以重製這個錯誤.

Class File => a.php

<?php
class a {
    static public function my_fun()
    {
        return true;
    }
}
?>

Test File => t.php

<?php
 
class T {
  static public function auto_load($class) {
        echo "looking for $class\n";
        $n = ''.$class.'.php';
        if (file_exists($n)) {
                echo "loading from file: $n\n";
                require_once($n);
                return true;
        }
        return false;
  }
}
 
spl_autoload_register(array('T', 'auto_load'));
 
// this one work
  $class = 'a';
  if (method_exists($class, 'my_fun'))
    echo "$class.my_fun() exists\n";
  else
    echo "$class.my_fun() not exists\n";
 
// this got segmentation fault
  $class = 'MY_CLASS_1000';
  if (method_exists($class, 'my_fun'))
    echo "$class.my_fun() exists\n";
  else
    echo "$class.my_fun() not exists\n";
spl_autoload_unregister(array('T', 'auto_load'));
 
?>

正常沒有載入 ZendGuardLoader 時的結果:

mail:/tmp# php -v
PHP 5.3.8-1 with Suhosin-Patch (cli) (built: Nov 23 2011 18:25:58)
Copyright (c) 1997-2011 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies
    with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
mail:/tmp# php -Cq t.php
looking for a
loading from file: a.php
a.my_fun() exists
looking for MY_CLASS_1000
MY_CLASS_1000.my_fun() not exists
mail:/tmp#

載入 ZendGuardLoader 時的結果:

mail:/tmp# php -v
PHP 5.3.8-1 with Suhosin-Patch (cli) (built: Nov 23 2011 18:25:58)
Copyright (c) 1997-2011 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2011 Zend Technologies
    with Zend Guard Loader v3.3, Copyright (c) 1998-2010, by Zend Technologies
    with Suhosin v0.9.32.1, Copyright (c) 2007-2010, by SektionEins GmbH
mail:/tmp# php -Cq t.php
looking for a
loading from file: a.php
a.my_fun() exists
looking for MY_CLASS_1000
looking for MY_CLASS_1000
looking for 80fbdj487sxn5
Segmentation fault
mail:/tmp#

在載入 ZendGuardLoader 之後, 會對一個不存在的 class 執行 autoload 函式兩次 (應該算三次吧), 然後會跟著一個亂數名的 class 再執行 autoload 函式一次.... 接著就 segmentation fault 了.

有了這個簡單的 case, 就丟給 Zend 去分析了 (奇怪, 怎麼我開一個新的 support case 都會不成功?... 最後只好丟他們的討論區去), 希望有好消息.