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Editorial Team
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Asked: 2026-05-17T17:24:45+00:00

Is it possible to call a PHP function found in a file on another

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Is it possible to call a PHP function found in a file on another website with a different domain?

For example, I know that to call a PHP function from another file in the same domain (say function aaa() found in aaa.php) I just have to simply do this (with a few simplifying assumptions):

include_once('aaa.php');
aaa();

I have tried doing something similar, such as:

include_once('http://othersite/aaa.php');
aaa();

I cannot get this to work (the page seems to load fine, with no error messages, but the function does not execute). I have tried require(), which gives me a blank screen. I have had no success with fopen either.

If it is possible to do this, how can I do it?

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1 Answer

  1. Editorial Team

    What you are currently doing is getting the remote server to execute the PHP file and then you’re reading the parsed contents — the same as a browser would. So you get (presumably) HTML, not PHP code.

    If the remote code does not need to be kept private for any reason (e.g. security) you can get the remote server to serve you the PHP source code. The easiest way to do that is to rename the file as aaa.txt, so it will not be passed to the PHP interpreter.

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