Install Composer

Before instaling COMPOSER make sure you have completed SERVER SETUP - Click here to know more.


STEP 1 

Run below command from root directort to Install the composer globally.

curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer

See if it works run command composer you will get composer welcome screen.

wW3jCXAhZg5eCk75Wd2vEXkiHPGLkrByNUmaqzv0.png

Composer version 1.7.2 2018-08-16 16:57:12


To update composer run 
composer self-update

Now install backend.