Composer cheatsheet

A highly opinionated Composer cheat sheet.

Version constraints

• ~2.6.1 translates to >=2.6.1,<2.7.0
• ~2.6 translates to >=2.6.0,<2.7.0
• ^2.6.1 translates to >=2.6.1,<2.7.0

Commands

• download packages: composer install -a
• add package: composer require <package>:<version>
• update package: composer update <package>
• show installed version of package: composer show <package> | grep version

Tips

• Add a prefix for the autoloader configuration
• Use autoload-dev for tests