macos upgrade composer code example

Example 1: update composer mac

#mac
composer self-update

Example 2: upgrading composer globally on windows

php composer.phar self-update

Example 3: run global packages macos composer

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

Example 4: update composer mac

#Ubuntu-Download Composer and create a Phar (PHP Archive) file
$ curl -s https://getcomposer.org/installer | php

#Move it to bin directory
$ sudo mv composer.phar /usr/local/bin/composer