Get filesystem path of installed composer package

Question

How can get filesystem path of composer package?

composer.json example:

{

    \"require\" : {
        \"codeception/codeception\" : \"@stable\",
                


        

Answer 1

Not sure if the following is the correct way for this because composer is changing so fast.

If you run this command:

php /path/to/composer.phar dump-autoload -o

it will create a classmap array in this file

vender/composer/autoload_classmap.php

with this format "classname" => filepath.

So to find filepath of a given class is simple. If you create the script in your project's root folder, you can do this:

$classmap = require('vender/composer/autoload_classmap.php');
$filepath = $classmap[$classname]?: null;