- Removed unnecessary ReflectionException in PHPdoc
- Corrected return details of insert function
- Replaced deprecated class
- Removed Inventory model's insert function because it wasn't providing functionality that the Model class wasn't.
- Corrected the calling method signature for Inventory->insert()
- Removed `mixed` function return type from some functions for backward compatibility with php 7.4
- Refactored string concatination for readability.
- Added TODO for later
- Corrected PHPdocs
- Removed unneeded TODO
- Refactored function names with mixed snake and pascal case names
- Added missing PHPdocs
- Corrected Syntax
- Added noinspection parameters to PHPdoc for AJAX called functions
- Added missing function return types
- Added missing parameter types
- Added public keyword to functions without visibility modifier
- Corrected incorrectly formatted PHPdocs
- Added public to constants and functions missing a visibility keyword
- Replaced TRUE/FALSE constants with true/false keywords
- Replaced NULL constant with null keyword
- Replaced `<?php echo` in views with shortened `<?=`
- Added missing variable declaration
- Added missing function return type in declaration
- replaced `== true`, `== false`, `=== true` and `=== false` in if statements with simplified forms
