Discuss how you would version control a large WordPress project using Git and GitHub, and how to collaborate effectively with team members.

Version control using Git and GitHub is essential for managing large WordPress projects, ensuring code integrity, tracking changes, and enabling effective collaboration among team members. Here’s a detailed explanation of how to implement version control with Git and GitHub for a WordPress project:

1. Initialize a Git Repository:
The first step is to initialize a Git repository in the root directory of your WordPress project, or just in your theme or plugin folder depending on what you want to track. This can be done using the command line. Go to the root directory of your theme or plugin, and use the command `git init`. This command creates a `.git` directory that contains all the version control information for the project. After this command the folder is under version control. For a full site the git repository will be created in the root folder where the `wp-config.php` file is.

2. Create a `.gitignore` File:
A `.gitignore` file is crucial to specify which files and folders Git should ignore. This prevents unnecessary files from being added to the repository. Typically, you should ignore the `wp-content/uploads/` directory, the `wp-config.php` file, and other sensitive or temporary files and folders that are not necessary for the code of the website. Here's a typical example of a `.gitignore` file for a WordPress project:
```
wp-config.php
wp-content/uploads/
wp-content/cache/
wp-content/upgrade/
wp-content/backup/
.DS_Store
node_modules
*.log
```
This prevents WordPress core folders and temporary files from being tracked with version control.

3. Initial Commit:
After setting up `.gitignore` stage the files you want to commit using `git add .`, which stages all the changed files, then commit the code using the command `git commit -m "Initial commit"`. This takes a snapshot of the project at this moment. The `-m` flag allows you to write a commit message to describe the changes made.

4. Create a Remote Repository on GitHub:
Create a new repository on GitHub for your project. Once created, GitHub will give you instructions to link your local repository to the remote one. Use `git remote add origin <your_github_repository_url>` command which adds a remote origin to your git repository. You can then push your changes to GitHub using `git push -u origin main` (or `git push -u origin master` if your default branch is named master). The `main` is the name of the default branch, which may be `master` as well depending on settings. The `-u` flag sets the upstream branch for tracking.

5. Branching Strategy:
Use a proper branching strategy such as Gitflow. The `main` (or `master`) branch should always reflect the stable and production-ready code. Develop new features or bug fixes on separate branches. Create new branches using `git checkout -b feature/new-feature` or `git checkout -b bugfix/fix-bug`. Make changes in that branch and when the changes are completed then merge this branch to the main branch. When working on different features create separate branches for each feature. After completing development in a branch, you would merge it into the `main` branch.

6. Collaborative Workflow:
Each team member should have their own branch. When working on new features or bug fixes, create a new branch from the `main` branch, do the necessary changes, commit the changes in the branch, and then push that branch to GitHub. After the changes are completed and tested, create a pull request on GitHub to merge the branch into the `main` branch. Other team members can review the code changes in the pull request and provide feedback before the merge is completed. This ensures better code quality. After a pull request is approved, merge the branch into the `main` branch.

7. Pulling Changes:
Before starting work, regularly pull the latest changes from the remote repository using `git pull origin main` to keep your local branch synchronized. Before pushing always make sure you pull the latest version from the remote repository to avoid merge conflicts.

8. Commit Regularly:
Make small, frequent commits with descriptive messages. Each commit should focus on a single change or a feature so that if needed, any commit can be reverted without losing significant amounts of changes. Use clear and concise commit messages to explain what changes were made and why. For example a good commit message is `Added responsive navigation`.

9. Resolve Merge Conflicts:
If changes made by different team members conflict, Git will prompt merge conflicts. Resolve the conflicts by carefully reviewing the affected code and making necessary changes. Git will mark the conflicts in the affected files using markers and you must review the changes and remove these markers after merging the code. After the conflicts are resolved, commit the changes to the merge branch. Merge conflicts can occur when different users change the same lines in the same file.

10. Use GitHub Issues and Projects:
Use GitHub issues to track bugs, feature requests, and other tasks. Use GitHub projects to organize tasks into different categories. You can also assign tasks to other team members. By using issues and projects you can effectively manage team work and track tasks.

11. Database Management:
Version control does not track the database. Use tools or plugins to manage your database separately. Database changes can be backed up and synced between environments or use a database versioning system for tracking changes to the database. Alternatively you can use a migration system for database versioning.

12. Continuous Integration (CI) and Continuous Deployment (CD):
Integrate CI/CD pipelines with GitHub Actions. Use CI to automate testing and code quality checks. Use CD to automate the deployment of the site to different environments (development, staging, production) from the repository.

By using this approach, teams can collaborate efficiently, track changes, and manage a large WordPress project in a organized and maintainable manner. Version control using Git and GitHub is an essential practice for professional WordPress development.