PHP无法使用Windows命令行识别为命令

C:\>php tools\spark install -v1.0.0 example-spark
'php' is not recognized as an internal or external command,
operable program or batch file.

Why is this so? What are the things I need to do for me to execute this command? Please help. Thanks a lot

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I just change my environment variables in the control panel->perfromance and maintenance->system->advance and click environment variables and edit the path to C:\wamp\bin\php\php5.4.3

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http://www.skylit.com/javamethods/faqs/javaindos.html but use your php directory instead

You need to add PHP to your Windows PATH variable. You can read a good explanation of how to do this in the PHP manual.