Could not open input composer.phar file on Windows 7
4 answers
Read here https://getcomposer.org/download/ for instructions on how to get the composer.
An easier way is to run
php -r "readfile('https://getcomposer.org/installer');" | php
In this directory.
Or you can follow these instructions https://getcomposer.org/doc/00-intro.md#installation-windows so you can reuse it for other projects.
+5
source to share