做过工商银行B2C支付接口开发的朋友来帮帮看看
用工行给的demo做测试，但是总是报错：
Warning: dl() [function.dl]: Not supported in multithreaded Web servers - use extension=php_infosec.dll in your php.ini
然后我在php.ini里面加了“extension=php_infosec.dll”，把工行提供的php_infosec.dll文件放到扩展目录下，重启apache，还是报这个错
我通过phpinfo查找，发现infosec这个模块一直没有加载上，请问是什么原因？
我的环境是wamp apache 2.0 php 5.2.6
回复讨论(解决方案)
没用过 给你提个思路
php_infosec.dll的版本号是否适合你的PHP 很关键
另外如果你用的是"wamp"这个集成环境软件的话 可以放进去以后重启这个软件 然后在软件托盘图标上点,查看是否自动识别了这个扩展 然后打上勾.
5.2.6....这 PHP 版本够古董啊
楼主，你确定把php_infosec.dll这个放到你的php扩展文件夹下面了？
那你看看apache服务的日志吧，一般dll加载失败或者未加载都会在日志里面的。
若是dll存在未加载，那就是版本问题。那你查一下银行有没有强调php版本啥的，操作系统位数等等。。。
php5.2版本还要放到系统盘System32下面
http://www.wampserver.com/ php高版本的集成环境可以到这里下载
php_infosec.dll 这个是你自己开发的吗？直接安装到PHP环境吧
用绝对路径....
php实现工商银行在线支付接口
http://3aj.cn/article/305.html
亲，解决了么？求交流！！！
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