Javascript String Functions - For Interview

Please read the functions in below URL.

http://www.w3schools.com/js/js_string_methods.asp

http://www.w3schools.com/jsref/jsref_obj_string.asp

Javascript Array Functions - For Interview

Please read the functions in below URL.

http://www.w3schools.com/js/js_array_methods.asp

http://www.w3schools.com/jsref/jsref_obj_array.asp

PHP String Functions - For Interview

Please read the functions in below URL.

http://www.w3schools.com/php/php_ref_string.asp

PHP Array Functions - For Interview

Please read the functions in below URL.

http://www.w3schools.com/php/php_ref_array.asp

Yii 2 Advanced Project Installation

Yii 2 Advanced Project Installation

1. Download Yii2 Advanced from official site:

     i. Go to: http://www.yiiframework.com/download/
         And click on the link  Yii 2 with advanced application template
                                    OR
         Directly visit: https://github.com/yiisoft/yii2/releases/download/2.0.6/yii-advanced-app-2.0.6.tgz

      ii. Now place the extracted folder on your local server's htdocs folder. Say folder name is yii2advanced. In my case using xampp from windows 7. So placed on C:\xampp\htdocs\yii2advanced.

2. Create Database and Connect.
 
    i. Create a empty Database using PHPMyAdmin. Say database name is "yii2advanced".

    ii. Update database details on yii2advanced\common\config\main-local.php.

3. Run init and yii migrate commands.

     i. Go to installed path on your command line tool.
         c:\> cd xampp/htdocs/yii2advanced

     ii.  Run init command.
           c:\xampp\htdocs\yii2advanced>init                 // Select dev / product environment.

     iii. Now run yii migrate on same location.

          c:\xampp\htdocs\yii2advanced>yii migrate

Now you can see the frontend and backend on following urls

Backend:  http://locahost/yii2advanced/backend/web/
Frontend:  http://locahost/yii2advanced/frontend/web/

4. Remove index.php from URL(Enable Pretty URL).
     
Now we are going to remove index.php and query parameters like r=controller/action from URL.

      i. Create .htaccess files in frontend/web and backend/web folders with below codes.
          RewriteEngine on
          # If a directory or a file exists, use it directly
          RewriteCond %{REQUEST_FILENAME} !-f
          RewriteCond %{REQUEST_FILENAME} !-d
          # Otherwise forward it to index.php
          RewriteRule . index.php

      ii. Add urlManager component inside common/config/main.php as described below.
           'components' => [
        // Your other components.

        'urlManager' => [
                'class' => 'yii\web\UrlManager',
                // Disable index.php
                'showScriptName' => false,
                // Disable r= routes
                'enablePrettyUrl' => true,
                'rules' => array(
      '<controller:\w+>/<id:\d+>' => '<controller>/view',
      '<controller:\w+>/<action:\w+>/<id:\d+>' => '<controller>/<action>',
      '<controller:\w+>/<action:\w+>' => '<controller>/<action>',
        ),
         ],
           ],

Now we have to remove front/web from url.

To remove front/web from URL you have to follow Step 5 OR Step 6.

5. Remove frontend/web through .htaccess

i. Create a .htacces file on root direcctory(C:\xampp\htdocs\yii2advanced\) with following lines.

<IfModule mod_rewrite.c> 
  RewriteEngine on

  RewriteCond %{REQUEST_URI} !^public
  RewriteRule ^(.*)$ frontend/web/$1 [L] 
</IfModule>

# Deny accessing below extensions
<Files ~ "(.json|.lock|.git)">
Order allow,deny
Deny from all
</Files>

# Deny accessing dot files
RewriteRule (^\.|/\.) - [F]

ii. Create a .htacces file on frontend/web(C:\xampp\htdocs\yii2advanced\frontend\web) with following lines.

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d 

RewriteRule . index.php

iii. Update your common config's main.php file(C:\xampp\htdocs\yii2advanced\common\config\main.php) as below

<?php
return [
    'vendorPath' => dirname(dirname(__DIR__)) . '/vendor',
    'components' => [
        'cache' => [
            'class' => 'yii\caching\FileCache',
        ],
'urlManager' => [
'class' => 'yii\web\UrlManager',
// Disable index.php
'showScriptName' => false,
// Disable r= routes
'enablePrettyUrl' => true,
'rules' => array(
'<controller:\w+>/<id:\d+>' => '<controller>/view',
'<controller:\w+>/<action:\w+>/<id:\d+>' => '<controller>/<action>',
'<controller:\w+>/<action:\w+>' => '<controller>/<action>',
),
        ],
    ],
];

iv. Update your frontend config's main.php file(C:\xampp\htdocs\yii2advanced\frontend\config\main.php) as below

<?php
$params = array_merge(
    require(__DIR__ . '/../../common/config/params.php'),
    require(__DIR__ . '/../../common/config/params-local.php'),
    require(__DIR__ . '/params.php'),
    require(__DIR__ . '/params-local.php')
);

use \yii\web\Request;
$baseUrl = str_replace('/frontend/web', '', (new Request)->getBaseUrl());

return [
    'id' => 'app-frontend',
    'basePath' => dirname(__DIR__),
    'bootstrap' => ['log'],
    'controllerNamespace' => 'frontend\controllers',
    'components' => [
'request' => [
            'baseUrl' => $baseUrl,
        ],
        'user' => [
            'identityClass' => 'common\models\User',
            'enableAutoLogin' => true,
        ],
        'log' => [
            'traceLevel' => YII_DEBUG ? 3 : 0,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
        'errorHandler' => [
            'errorAction' => 'site/error',
        ],
'urlManager' => [
            'baseUrl' => $baseUrl,
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => []
        ]
    ],
    'params' => $params,
];

All are done, now you can start developing your project.

Now you can see the frontend and backend on following urls
Frontend:  http://locahost/yii2advanced/
Backend:  http://locahost/yii2advanced/backend/web/

6. Remove frontend/web by registering vhost for front and back end.

    i. Open C:\Windows\System32\drivers\etc\hosts.php and add two new urls for your front and backends.

   127.0.0.1       frontend.yii2advanced.com

   127.0.0.1       backend.yii2advanced.com

   ii. Now open C:\xampp\apache\conf\extra\httpd-vhosts.conf file and map locations for above created urls.

<VirtualHost *:80>

   ServerName frontend.yii2advanced.com

   DocumentRoot "C:/xampp/htdocs/advanced_wp/frontend/web/"

   <Directory "C:/xampp/htdocs/advanced_wp/yii-application/frontend/web/">

  # use mod_rewrite for pretty URL support

  RewriteEngine on

  # If a directory or a file exists, use the request directly

  RewriteCond %{REQUEST_FILENAME} !-f

  RewriteCond %{REQUEST_FILENAME} !-d

  # Otherwise forward the request to index.php

  RewriteRule . index.php

  # use index.php as index file

  DirectoryIndex index.php

  # ...other settings...

   </Directory>

</VirtualHost>

<VirtualHost *:80>

   ServerName backend.yii2advanced.com

   DocumentRoot "C:/xampp/htdocs/advanced_wp/backend/web/"

   <Directory "D:/xampp/htdocs/advanced_wp/yii-application/frontend/web/">

  # use mod_rewrite for pretty URL support

  RewriteEngine on

  # If a directory or a file exists, use the request directly

  RewriteCond %{REQUEST_FILENAME} !-f

  RewriteCond %{REQUEST_FILENAME} !-d

  # Otherwise forward the request to index.php

  RewriteRule . index.php

  # use index.php as index file

  DirectoryIndex index.php

  # ...other settings...

   </Directory>

</VirtualHost>       

Now our site is ready visit front and back end sites on following urls respectively.

http://frontend.yii2advanced.com

http://backend.yii2advanced.com