Install Yii2 extension manually without using Composer

Question

I want to install Select 2 extension widget manually with Yii2 Framework without using composer.

I done the following steps but it\'s not working.

1)

Answer 1

It's highly recommended to use composer instead.

But if you want to do it manually:

1) Download archive of needed version from Github.

2) Open composer.json.

3) Find PSR-4 autoload section and remember it, in your case: kartik/select2.

4) Extract files to corresponding folder in vendor: vendor/kartik/select2 (not yiisoft!).

5) Add to vendor/composer/autoload_psr4.php:

'kartik\\select2\\' => array($vendorDir . '/kartik/select2'),

6) Add to vendor/yiisoft/extensions.php:

'kartik/select2' => array (
    'name' => 'kartik/select2',
    'version' => '2',
    'alias' => array (
        '@kartik/select2' => $vendorDir . '/kartik/select2',
    ),
),

samdark, one of the core contributors has the article in russian about it on his official blog here. It's basically brief translated version.

As you can see it's quite a lot of work to do. Multiply it by number of extensions and it becomes pain.

Seriously, use composer. If the hoster doesn't support it, find another one.