Step 1: install curl
yum install -y curl
Step 2: curl -sS https://getcomposer.org/installer | php
Result:
[root@tutorialspots ~]# curl -sS https://getcomposer.org/installer | php All settings correct for using Composer Downloading... Composer (version 1.10.13) successfully installed to: /root/composer.phar Use it: php composer.phar
Step 3: mv composer.phar /usr/local/bin/composer