php composer doesn't work. composer does. Why?

I'm working through a tutorial that has me entering in a command into the Git Bash interface that looks like this:

php composer.phar require coolcsn/csn-user:dev-master

When I do that, I get an error message that says "Could not open input file: composer.phar"

I can do what needs to be done by entering the same command like this:

composer
composer.phar require coolcsn/csn-user:dev-master

But I want to understand why the first command doesn't work and, if the fact that it doesn't work, represent something I need to change on my system.

What do you think?
brucegustPHP DeveloperAsked:
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Loganathan NatarajanLAMP DeveloperCommented:
Are you using Windows? You need to install Composer https://getcomposer.org/download/
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brucegustPHP DeveloperAuthor Commented:
Hey, Logonathan!

I have installed composer and I am using Windows. When I run "composer" on Git Bash, I get a screen that outlines all of the specifics relative to that application. So, I'm confident I do have the app, I just can't seem to fire anything pertaining to composer when I've got "php" prefacing the command.

Make sense?
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hieloCommented:
When you execute:
php --version

do you see the error as well?  If so, you need to add php to your environment's PATH variable.
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brucegustPHP DeveloperAuthor Commented:
hielo, when I execute that command I don't get the error,just a a collection of text that has my PHP version number etc.
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hieloCommented:
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Ray PaseurCommented:
This is no an answer, just a recommendation.  Get off Windows.  Go get a Mac.  You can thank me later.  I've been down this path before, and I found Windows to be the biggest impediment I could imagine.  Like you I had become comfortable with Windows, so I didn't know what I was missing.  I promise that in a few months of working with a Mac and using the command line, you will never want to go back to Windows for anything.  Plus, most of our colleagues who have advanced beyond the "beginner" level of web development are using Macs, so it will be easier to get help when you speak the same language!
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Dave BaldwinFixer of ProblemsCommented:
I have to disagree with Ray on this.  Get a Linux machine, maybe, but a Mac?  Mac's OSX tries to hide too many things from the user.  Yes, I have two Macs, 4 Linux machines, 15 or 20 Windows machines.  Besides, there are more tools available under Windows than any other system.

On the other hand... I have successfully avoided using composer so far.  It appears to require being used on the 'target' machine.  But I would never do 'development' on the production system which is what composer seems to want.
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brucegustPHP DeveloperAuthor Commented:
I got it figured out, fellas. Thanks for your input.
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