Yii seo url ,Yii remove web,Yii remove index.php

1) views/site/formum.php

<?php

use yii\helpers\Html;
use yii\widgets\ActiveForm;

/* @var $this yii\web\View */
/* @var $model app\models\Musteriler */
/* @var $form ActiveForm */
?>
<div class="formum">

    <?php $form = ActiveForm::begin(); ?>

        <?= $form->field($model, 'musteri_name') ?>
 
        <div class="form-group">
            <?= Html::Button('Sub', ['class' => 'btn btn-primary','onclick' => 'fun("1");']) ?>

        </div>
    <?php ActiveForm::end(); ?>

</div><!-- formum -->
----------------------------------------------------------------------------------------------------
2) /assets/AppAsset.php


<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace app\assets;

use yii\web\AssetBundle;

/**
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since 2.0
 */
class AppAsset extends AssetBundle
{
    public $basePath = '@webroot';
    public $baseUrl = '@web';
    public $css = [
        'css/site.css',
    ];
    public $js = [
    'js/main-index.js'
    ];
    public $jsOptions = [
     'position' => \yii\web\View::POS_END

    ];
    public $depends = [
        'yii\web\YiiAsset',
        'yii\bootstrap\BootstrapAsset',
    ];
}
----------------------------------------------------------------------------------------------
3) /js/main-index.js

function fun(asd){

var a=$('#musteriler-musteri_name').val();

  alert(a+"-"+asd);
}
-------------------------------------------------------------------------------------------