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php -r "readfile(‘https://getcomposer.org/installer‘);" > composer-setup.php php -r "if (hash(‘SHA384‘, file_get_contents(‘composer-setup.php‘)) === ‘fd26ce67e3b237fffd5e5544b45b0d92c41a4afe3e3f778e942e43ce6be197b9cdc7c251dcde6e2a52297ea269370680‘) { echo ‘Installer verified‘; } else { echo ‘Installer corrupt‘; unlink(‘composer-setup.php‘); }" php composer-setup.php php -r "unlink(‘composer-setup.php‘);"
mv composer.par composer
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原文地址：http://www.cnblogs.com/archoncap/p/5207455.html
