[FIXED] PHP defining namespaces on composer's vendor packages

Issue

I'm having some issues with namespaces in PHP.

I've got everything nailed down and working within my project which is all running great. I used composer's autoload features to autoload all my project classes.

Recently I've needed to pull in a dependency through composer for securimage (captcha application). The problem I've got is that it won't work until I go editing the files and insert the following at the top of each php script.:

<?php namespace vendor\dapphp\securimage;

My composer.json file is using PSR-4 if that helps identify where I'm going wrong.

"psr-4": {
            "vendor\\dapphp\\securimage\\": "vendor/dapphp/securimage"
        }

My question in case it isn't obvious how do I pull in composer vendor projects and make PHP automatically insert/understand that these should be placed under the namespace

vendor\{userid}\{projectid}

without editing the actual files within.

I'm sure I've just missed something within the composer.json file?

Solution

You haven't really missed anything. It's up to a package to namespace its source code. Unless the source code literally contains a namespace declaration, the code is in the global namespace. You cannot change that fact without changing all the involved source code. The Securimage code is not namespaced, period.

"psr-4": {
    "vendor\\dapphp\\securimage\\": "vendor/dapphp/securimage"
}

This merely configures the autoloader. Meaning, should you try to load a class in the namespace vendor\dapphp\securimage\..., Composer's autoloader knows where to find it. It does not place the code in this namespace.

Answered By - deceze