1. Explain coding standards in Drupal?

As per the Coding standards, omit the closing ?> tag. Including the closing tag may cause strange runtime issues on certain server setups. (Note that the examples in the handbook will show the closing tag for formatting reasons only and you should not include it in your real code.)
All functions in your module that will be used by Drupal are named {modulename}_{hook}, where "hook" is a pre-defined function name suffix. Drupal will call these functions to get specific data, so having these well-defined names means Drupal knows where to look. We will come to hooks in a while.

2. How to create a folder and a module file in Drupal?

Given that our choice of short name is "onthisdate", start the module by creating a folder in your Drupal installation at the path: sites/all/modules/onthisdate. You may need to create the sites/all/modules directory first. Create a PHP file and save it as onthisdate.module in the directory sites/all/modules/onthisdate. As of Drupal 6.x, sites/all/modules is the preferred place for non-core modules (and sites/all/themes for non-core themes), since this places all site-specific files in the sites directory. This allows you to more easily update the core files and modules without erasing your customizations. Alternatively, if you have a multi-site Drupal installation and this module is for only one specific site, you can put it in sites/your-site-folder/modules.
The module is not operational yet: it hasn't been activated. We'll activate the module later in the tutorial.

3. How to name your module?

The first step in creating a module is to choose a "short name" for it. This short name will be used in all file and function names in your module, so it must start with a letter and by Drupal convention it must contain only lower-case letters and underscores. For this example, we'll choose "onthisdate" as the short name. Important note: It is not just a convention that the short name is used for both the module's file name and as a function prefix. When you implement Drupal "hooks" (see later portions of tutorial), Drupal will only recognize your hook implementation functions if they have the same function name prefix as the name of the module file.
It's also important to make sure your module does not have the same short name as any theme you will be using on the site.

4. Explain the menu system in Drupal?

Define the navigation menus, and route page requests to code based on URLs.
The Drupal menu system drives both the navigation system from a user perspective and the callback system that Drupal uses to respond to URLs passed from the browser. For this reason, a good understanding of the menu system is fundamental to the creation of complex modules. Drupal's menu system follows a simple hierarchy defined by paths. Implementations of hook_menu () define menu items and assign them to paths (which should be unique). The menu system aggregates these items and determines the menu hierarchy from the paths. For example, if the paths defined were a, a/b, e, a/b/c/d, f/g, and a/b/h, the menu system would form the structure:

5. How to interact with Drupal search system?

There are three ways to interact with the search system:
Specifically for searching nodes, you can implement nodeapi ('update index') and nodeapi ('search result'). However, note that the search system already indexes all visible output of a node, i.e. everything displayed normally by hook_view () and hook_nodeapi ('view'). This is usually sufficient. You should only use this mechanism if you want additional, non-visible data to be indexed.
Implement hook_search (). This will create a search tab for your module on the /search page with a simple keyword search form. You may optionally implement hook_search_item () to customize the display of your results.
Implement hook_update_index (). This allows your module to use Drupal's HTML indexing mechanism for searching full text efficiently.
If your module needs to provide a more complicated search form, then you need to implement it yourself without hook_search (). In that case, you should define it as a local task (tab) under the /search page (e.g. /search/mymodule) so that users can easily find it.

6. How to Customize a Drupal Syndicate Feed Icon?

For a recent project I needed to customize the feed icon in the Drupal theme I was creating. This wasn't as straight forward as I thought it would be. Being the drupal newbie that I am I went looking for it in the core templates and suggestions page only to come empty handed.
Previously I found the solution to theming a search form by using the search-block-form.tpl.php template file and thought there would be one for the feed icon too. I found the solution to this in the function reference in the form of a theme hook.
theme_feed_icon($url, $title)
This function is internally called by drupal to generate the feed icon in the Syndicate block. Our Job is to override this function.

7. How to backup a Drupal site?

Backing up your Drupal site is now very easy, you just need to download and install a module called Backup & Migrate. To install the module click on the Administer Modules check the Backup and Migrate module and enable it and save the settings.
Then navigate to the Administer Content Management Backup and Migrate then do the following settings.
► Exclude the following tables altogether: select the table which you dont want to take backup.
► Give the backup file name.
► There are also options to compress the file before download, or add a datestamp.
► And then click Backup Database.
Alternately you can take backups using PhpMyAdmin.

8. How to move a Drupal Site from One host/server to another on your NEW host?

► Upload your folder with the complete drupal installation to your home-directory.
► Once done, go to phpadmin on the new host, create a new mysql database, example "name_drpl1" and create a new mysql user. Create a password for this new mysql user, click "assign all privileges" to this user and assign the user to the new database.
You now should have a new mysql database on the new host with a mysql user, eg. "name_drpl1" as database name and "name_username" as database user name.
► Import (upload) the database (which you exported from the old host earlier) with phpadmin to the new database. This might take a minute.
► If needed edit the file [drupal home]/sites/default/settings.php and edit at the section where you enter the database, location, username and password. You CAN enter the password either encrypted or not encrypted there.
► Chmod your "files" folder so it is writeable using your ftp client (filezilla), chmod to 777
► Double check your .htaccess and [drupal home] /sites/default/settings.php and make changes in case they are needed.
Change nameserves on your domain host and let them point to your new host's nameservers.
Enter the new nameservers in your control panel where your domain names are hosted, overwriting the old ones.
After some time (sometimes a day or two) your domain should point to the new host and drupal should be up and running on the new host.

9. How to move a Drupal Site from One host/server to another?

Migrating Drupal On your OLD host:
► Backup your whole home directory from your ftp access using an ftp client like filezilla. Make a folder on your local harddisk and download the complete directory to that local folder.
► Backup your mysql database on your old host using phpadmin, select your mysql database, usually something like "name_drpl1". Select all fields, click "export" and save the database to your local harddisk. Leave default options enabled. You will receive a file similar to "name_drpl1.sql".
This is your mysql database

10. How to install Drupal on a local WAMP server?

Preparing your computer with a local installation of Drupal with WampServer is comparatively a trouble-free process to follow. Since WampServer will install an Apache-server, SQL, PHP and phpMySQL on your computer, with those tools you can install and run Drupal locally even without an internet connection.

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