PHP 7.1: Get file path from namespace

Question

I have a project. I need to get the contents of a file in a package. I could do it the hard way:

file_get_contents('../../vendor/{vendor}/{package}/src/
    {directory}/{sub-directory}/class.php');

Or, I could do it the "easy way," which I'm pretty sure is impossible.

namespace MyVendor\MyProject;

use TheirVendor\TheirPackage\TheirClass;

class MyObject
{
    public function myFunction()
    {
        return file_get_contents(TheirClass);
    }
}

Is this (or something like it) possible?

Answer 1

You can get the file name of where a class is declared using a ReflectionClass instance and its getFileName() method:

$reflector = new ReflectionClass(\Vendor\Package\Class::class);
echo $reflector->getFileName();