卸载php扩展名:反向dl() [英] unloading php extensions : reverse dl()
问题描述
对于那里的专家来说，PHP中是否有任何隐藏的gem可以在运行时卸载特定的扩展?
To you gurus out there, is there any hidden gem in PHP that could unload a specific extension at runtime ?
推荐答案
不，这是 不可能 ，很可能永远不会:
No, that's not possible and most likely never will:
[2011-02-08 11:34 UTC] rasmus@php.net
从每个请求的基础上扩展扩展名根本不可行 性能的观点.而且您显然无法卸载并将其卸载 对于下一个请求，因为该下一个请求可能针对的是预期 扩展到那里.
[2011-02-08 11:34 UTC] rasmus@php.net
extension unloading on a per-request basis simply isn't feasible from a performance point of view. And you obviously can't unload and leave it unloaded for the next request because that next request may be for a page that expects the extension to be there.
但是，仍然不建议使用dl()-在最新版本中，仅在CLI版本中可用.
However, using dl() is discouraged anyway - and in recent versions it is only available in the CLI version.
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