{
    "name" : "ellislab/codeigniter",
    "require": {
        "php": ">=5.1.6",
        "mikey179/vfsStream": "*"
    },
    "require-dev": {
		  "phpunit/phpunit": "*"
		}
}
{
    "name" : "ellislab/codeigniter",
    "require": {
        "php": ">=5.2.4",
        "mikey179/vfsStream": "*"
    },
    "require-dev": {
		  "phpunit/phpunit": "*"
		}
}
Update the required version of PHP to 5.2.4
Update the required version of PHP to 5.2.4
