The easy way to deploy PHP environment into Amazon EC2 is to use AWS Elastic Beanstalk service. It automatically runs all the infrastructure including EC2 instance with PHP installed. See http://aws.amazon.com/elasticbeanstalk/.
yum installation is also available on EC2.
The amazon EC2 Platform comes with the basic PHP platform you just have to call your modules which you want to install with the amazon platform. you can simply call
<b>sudo yum install php-"your_modules"<b/> and then restart your server by using <b>sudo restart service httpd</b>
now you are able to use php on your amazon cloud environment.
