nodejs calls PHP using child_process

In our project there is a use-case that we need to rely on a third-party php SDK, but since all of my projects are coded in node, I don't want to bother with setting up a php environment and then expose some http APIs for my node, I just want to leave the SDK as it is and call it directly from my node, here is how I do it.

Node's child_process avail you to fork a new process and in this process you can do heavy works such as calling another program through command line, and trigger a callback after program done.

function callPhpSDK(param){
    //do some check with param 
    ....
    //the command to be executed
    var cmd = 'php -f /your/path/to/SDK.php ' + param;
    var child = require("child_process")
        .exec(cmd, function(err, stdout, stderr){
            if(err || stderr){
                console.error(err || stderr);
                return;
            }
            console.log(stdout);
        });
}

php -f file is a php command to execute a php file from command line, in the file, you can receive command line parameters from $arg_v etc. All you need is to install php on your server, no need to set up a php server for it.