centos7如何安装composer

linux安装composer非常简单，只需要两行命令

curl -sS https://getcomposer.org/installer | php
mv composer.phar /usr/bin/composer

执行第一行命令，如果提示php:command not found，就要把php的二进制文件复制到/usr/bin下面去

cp /usr/local/php/bin/php /usr/bin/

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