可以用PHP修改htaccess文件吗？

Question

I am building a Modules for SUgarCRM that is in PHP.

When a user installs the module, I have access to a script that can be run as part of the install process...

I basically need to modify the .htaccess file and increase the max_input_vars INI setting.

So I need to have code that:

1. Reads the PHP INI setting for max_input_vars this part is easy. If it is lower than say 3000 I need to increase it in the .htaccess file
2. Read in the contents of the .htaccess file
3. Add this value to the htacess php_value max_input_vars 3000
4. Save the .htaccess file with all the old contents as well as the new setting

Is this even practical? I think I have seen WordPress do such an action before and I will look there for help/ideas too but I could use any help in this?

Answer 1

As long as the file has writable permissions by the user that is running the script, then you should be able to use:

file_put_contents('path/to/.htaccess', "\nphp_value max_input_vars 3000", FILE_APPEND);

If permissions are an issue, and you don't want to make the .htaccess file writable by whatever user is running the script, then I know there are ways to escalate your current permissions (by changing the current user), using something like a C++ executable, but I don't know the details (I've seen it done by a guy I work with). Sorry if that's unhelpful. :-\\