Instalar Composer
Configurando el entorno para php
vim /etc/profile
export PATH="$PATH:/usr/local/php/bin"
Descarga e instala composer
cd /mnt
curl -sS https://getcomposer.org/installer | php
#curl -sS https://getcomposer.org/installer | /usr/local/php/bin/php
mv composer.phar /usr/local/bin/composer
Cambiar la fuente de espejo del compositor
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
Ver instalación
composer