Installing Composer on Mac OSX

Composer is a cross-platform dependency manager for PHP libraries.

In this guide, i'm installing Composer on a machine running Mac OSX with MAMP.

  1. Open a terminal and navigate to your user directory, ie cd /User/<USER_NAME>/
  2. Run this command shown below to download Composer. This will create a Phar (PHP Archive) file called composer.phar:
    curl -sS | php
  3. Now we move composer.phar file to a directory
    sudo mv composer.phar /usr/local/bin/
  4. We want to run Composer with having to be root al the time, so we need to change the permissions:
    sudo chmod 755 /usr/local/bin/composer.phar


  5. Next, we need to let Bash know where to execute Composer: 
    nano ~/.bash_profile

    Add this line below to bash_profile and save

    alias composer="php /usr/local/bin/composer.phar"

    and then run this command:

    source ~/.bash_profile


  6. Finally, run: 
    composer --version

    If all goes well and it is working, you'll see this screen:
    Composer installed