php.ini：

[Zend]
zend_extension = E:/server/0extra/ZendLoader-php5.4.dll
zend_loader.enable = 1
zend_loader.disable_licensing = 0

结果：

PHP Version 5.4.19

Server API Built-in HTTP server
E:\server\php-5.4\php.ini

Zend logo This program makes use of the Zend Scripting Language Engine:
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies

    with Zend Guard Loader v3.3, Copyright (c) 1998-2013, by Zend Technologies

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另：用PHP5.4的内置服务器，出现startup提示：

PHP5.4 Built-in HTTP server 提示：PHP startup
配置好php环境后，每次开机都有警告提示说 PHP startup，
解决这个问题很简单只需要在php.ini 文件中修改 extension_dir配置就行