Could not open input file composer.phar in Windows 7

问题

I am trying to install an extension in Yii2, while I installing through command prompt using

C:\wamp\www\project>php composer.phar require mdmsoft/yii2-admin "~1.0"

I am getting an error like this:

could not open input file composer.phar

回答1:

Where did you install composer?

You have to add the directory, for example:

php C:\ProgramData\ComposerSetup\bin\composer.phar require ...

If you add the directory to your windows path you can simply call

composer require ...

回答2:

Read here https://getcomposer.org/download/ it gives you instructions for how to get composer.

The easier way is to run

php -r "readfile('https://getcomposer.org/installer');" | php

In that directory.

Or you can follow these instructions https://getcomposer.org/doc/00-intro.md#installation-windows so you can reuse it for other projects too.

回答3:

Type composer require mdmsoft/yii2-admin "~1.0" in your cmd

回答4:

in windows execute

composer require mdmsoft/yii2-admin "~1.0"

regards!

来源：https://stackoverflow.com/questions/27813693/could-not-open-input-file-composer-phar-in-windows-7