What is composer? Now we don’t have to reinvent wheel, we can select the tyre, the rim, the gauge. Same way in PHP we don’t have to write everything from scratch but we use Composer will give us these components so that they will work together without compatibility issues.
Composer is the dependency manager for PHP. That means that chunks of php code, which are tested and each package solves one some problem are packed into a packages and added to packagist repository.
Posted by Stefan Kecskes on Thursday, June 25, 2015