PHP函数file_get_contets（$ url）; 返回原始代码或执行代码？ [关闭]

Question

It returns entire file contents with PHP tag within domain but it returns only echo'ed or viewable content in Cross Domain. Why so?

Answer 1

file_get_contents() is used to get the raw contents of a file. The contents are not parsed nor interpreted; it is a direct read from disk operation.

A URL can be used as a filename with this function if the fopen wrappers have been enabled. When called with a url as a parameter, it will return the rendered result from the server just as if you typed the URL in the browser.