CODEWITHSUNDEEP
phpcomposer-phppsr-0
James Jeffery
James Jeffery

Reputation: 12599

Composer Autoloading

I'm currently trying to use PSR-0 autoloading with Composer, but I'm getting the following error:

Fatal error: Class 'Twitter\Twitter' not found

My directory structure looks like this

- Project
    - src
        - Twitter
            Twitter.php
    - vendor
    - Test
    index.php

My index.php file looks like this:

<?php

    use Twitter;
    $twitter = new Twitter();

My Twitter.php file looks like this

<?php 

namespace Twitter;

class Twitter
{
    public function __construct()
    {
        // Code Here
    }
}

And finally my composer.json looks like this:

{
"require": {
    "phpunit/phpunit": "3.8.*@dev",
    "guzzle/guzzle": "3.7.*@dev"
},
"minimum-stability": "dev",
"autoload": {
    "psr-0": {
        "Twitter" : "src/Twitter"
    }
}
}

I am getting a little confused. I come from a C# background and this way of working is kinda confusing me. What's the correct way to use PSR-0 autoloading?

Upvotes: 10

Views: 20995

Answers (5)

barudo
barudo

Reputation: 665

This is a very late reply but the first thing you need to make "autoloading" works is have your PHP version be 5.6 and above.

Upvotes: 0

abuduba
abuduba

Reputation: 5042

First of all,

My index.php file looks like this:

use Twitter;
$twitter = new Twitter();

If it's your index.php you forgot to include the composer's autoload script first. 

require __DIR__ . '/vendor/autoload.php';

See https://getcomposer.org/doc/01-basic-usage.md#autoloading for details.

Upvotes: 2

Quim Calpe
Quim Calpe

Reputation: 124

There is an error in your index.php, should be: use Twitter\Twitter; $twitter = new Twitter(); or $twitter = new Twitter\Twitter();

Upvotes: 1

Gianluca Mancini
Gianluca Mancini

Reputation: 1312

In your composer.json use:

"autoload": {
    "psr-0": {
        "": "src/"
    }
}

or

"autoload": {
    "psr-0": {
        "Twitter\\": "src/"
    }
}

and then run php composer.phar dump-autoload

Upvotes: 11

dev-null-dweller
dev-null-dweller

Reputation: 29492

Use

"psr-0": {
     "Twitter" : "src/"
 }

This instructs composer to create autoloader, that will look in src for everything from Twitter namespace. And since it is PSR-0, namespace is treated as a folder and added to declared path, so you should not include it in path part in composer.json

Upvotes: 3

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