composer global code example

Example 1: upgrade composer version

composer self-update

Example 2: update packages composer global

composer global update

Example 3: upgrading composer globally on windows

php composer.phar self-update

Example 4: run global packages macos composer

export PATH=~/.composer/vendor/bin:$PATH

Example 5: composer mac

php composer-setup.php --install-dir=bin --filename=composer