Drupal 7.x

I'm trying to make a custom page created with hook_menu() and in the callback function, I need to get a variable with HTML code which is returned by a library I'm using. I tried getting it with page_callback_function($html) but page callback functions get variables from hook_menu arguments. How can I achieve this?

Sample code:

Hello, this might be a vague post, but will try my best.

I have a situation where we have one code base and multiple dev and test environment.

I am in a situation where the developers are claiming a particular heavily customized module function is displaying on one environment but not in the other. 

I checked and double checked and I am pulling the correct code from the correct git repo.

I also checked apache permissions and file and folder permissions. They seem all correct.

I cleared and re-cleared drupal caches

I want to add User Registration to my Webform page in a way that Anonymous User can see the Webform and fill it together with the User registration. And the form will not be submitted unless the user enters registration data into the User Registration fields. Thanks

The login page was blocked from external IP address before, that was set by the web design company when they created, I remember that it would show something like "Access Denied". However, after I recreated the server and restored the website from backup, the login page can be access from external IP.

I have a .htaccess file included <IfModule mod_rewrite.c> from other sub directory and it can deny access from external IP, but I have no idea where can I put this .htaccess file to block the login page, or is there another way to solve it? Thank you.

I'm writing this due to what has occasionally come up as an issue in our site creation/maintenance. The /admin/modules page ends up getting full of a long list of modules, which may or may not have been added by long-gone developers, for features that may or may not be obsolete by now, or perhaps even added by oneself (while I was testing things out and forgot by the next week what exactly it was I was trying to accomplish at the time, haha).