如何从其他网站（我控制）获取代码？

Question

I want to enter a line of php into my site and have it echo out code that is to be entered on my site. Essentially I am controlling a part of a clients' site and it is more convenient for all involved if I can change it without requiring them to upload it. This must be a long solved issue, but I cannot find a solution. Also, I am not sure if this is possible if my code is server side. Thoughts, help, suggestions?

Answer 1

You should figure out a different approach to fixing this problem. From the top of my head, you could probably write a utility that allows, with a username and password, you to replace specific files.

Using code from another site, even if you control it, is incredibly dangerous. All a would-be attacker has to do is spoof the address through one of many means, and they could literally do anything on the server that the script has privileges to do. For completeness, you are looking for "eval", but you want to use a different approach.