Changing a single configuration setting WITHOUT a new php.ini?

[hatrickpatrick]

I want to change the auto_append setting for my site, which is currently set to "no value".

My server allows php.ini files, but I've heard there is a way to edit just one setting, in an actual PHP file, without making an entire php.ini, anyone know how to do it?

[flappy_warbucks]

INI_SET("setting_name","your_value");