有没有办法强制服务器停止执行脚本？

I am sending an AJAX get() request and I want to be able to abort it. Using the AJAX abort() I can force the client to stop listening to the response. Is there a way to make the server stop executing the php script?

You can use the function connection_aborted() to detect if the client is still connected and then die(), exit() or whatever if the client has.