install composer in centos 8 code example

Example 1: how to install composer centos 8

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer

Example 2: centos install composer

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"