composer example

gistfile1.json

{
    "name": "My-New-Project",

    "require-prod": {
        "doctrine/orm": "2.2.1"
    },
    "require-dev": {
        "doctrine/orm": "2.*"
    
    "require":{
        "facebook-sdk": "master"
    },

    "repositories": {
        "package": {
            "name": "facebook-sdk",
            "version": "master",
            "source": {
                "url": "https://github.com/facebook/php-sdk.git",
                "type": "git",
                "reference": "master"
        }
    },
        
}