What are some recommended version control systems for collaborative coding in PHP?

When collaborating on coding projects in PHP, it is essential to use a version control system to track changes, manage code revisions, and facilitate collaboration among team members. Some recommended version control systems for PHP development include Git, SVN (Subversion), and Mercurial. These tools allow developers to work on the same codebase simultaneously, track changes made by each team member, and easily merge code modifications.

// Example PHP code snippet for using Git version control in a collaborative coding project

// Initialize a new Git repository in the project directory
exec('git init');

// Add all files to the staging area
exec('git add .');

// Commit the changes with a descriptive message
exec('git commit -m "Initial commit"');

// Connect the local repository to a remote repository for collaborative work
exec('git remote add origin <remote_repository_url>');

// Push the changes to the remote repository
exec('git push -u origin master');