Warning: require_once(): http:// wrapper is disabled in the server configuration by allow_url_include=0

I am trying to include a php file in a page via

  require_once(http://localhost/web/a.php)

I am getting an error

 Warning: require_once(): http:// wrapper is disabled in the server configuration by   allow_url_include=0

I changed allow_url_include=1 in the php.ini and that worked but I don’t think that everybody will let me change their php.ini file.

So, is there any way to accomplish this?

Answer

The warning is generated because you are using a full URL for the file that you are including. This is NOT the right way because this way you are going to get some HTML from the webserver. Use:

require_once('../web/a.php');

so that webserver could EXECUTE the script and deliver its output, instead of just serving up the source code (your current case which leads to the warning).