WordPress Interview Questions and Answers

We can create templates for various purpose like if we want to make a different layout rather than a home page or if we want to display custom posts types like news than we can create a template and merely display all news there.

Steps to create template in wordpress themes.

• Create a news.php file on root in theme folder.
• Insert get_header(); and get_footer(); in news.php page
• Add in top of this created page. Now this template name is "News Template".

To make your static page as a front page you have to follow these steps

• Goto Admin Panel
• Select "A Static Page"
• Choose you page from "Front page" section
• Now your selected page from Front Page is set default front page.

It is provided by WordPress to allow your plugin to ' hook into' the whole WordPress; that is, to call functions in the plugin at particular times according to your need and thereby set your plugin in motion.

There are two kinds of hooks:

• Actions hook
• Filters hook

1. Actions Hook

Actions Hook are triggered by particular events that take place in WordPress such as changing themes, publishing a post, or displaying an administration screen. It is a custom PHP function defined in your plugin and hooked, i.e., set to respond, to some of these events.

Actions offently do one or more of the following things

• Modify database data
• Send an email message
• Modify the generated administration screen or front end page sent to a user web browser.

Here are some Actions Functions listed

• has_action()
• do_action()
• add_action()
• remove_action() etc

2. Filters Hook

Filters Hook are functions that WordPress passes data through, at certain points in execution, just before taking some action with the data. It sits between the database and the browser and between the browser and the database; all most all input and output in WordPress pass through at least one filter hook.

The necessary steps to add your filters to WordPress are listed:

• Create the PHP function that filters the data
• Hook to the screen in WordPress, by calling add_filter()
• Put your PHP function in a plugin file and activate it.

Here are some Filters Functions listed

• has_filter()
• doing_filter()
• add_filter()
• remove_filter() etc

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In WordPress, Posts is a dynamic entity that has a published or updated date and is displayed on the blog page.

Example: news, events etc

Pages do not have published or updated date. Hence there are useful for the static and timeless type of content.

Example, the “About Us” or “Contact Us”

The difference between pages and posts is that the WordPress page is a static entity and post is a dynamic entity.

• Goto admin panel -> setting -> click on the Discussion tab
• Under Default article settings uncheck the box next to Allow people to post comments on new articles
• Now click on Save Setting

This function is used by developers to retrieve the metadata of users. The usermeta function is capable to return an array or single metadata. The following syntax needs to be used to apply usermeta function.

get_user_meta( int $user_id, string $key = '', bool $single = false )

Avatar or Gravatar is an icon or representation of a user in a shared virtual reality, such as chat, forum, website or any other form of online community in which the user wants to have something to distinguish themselves from other users.

It usually an 80px by 80px image that the user will create by ownself.

A category is one of the predefined taxonomies in WordPress, and it is used to sort and group content into different sections. In new WordPress installation, "Uncategorized" is the default category. We can change the default category from Settings -> Writing screen. In WordPress post can be filed under many categories and can have both tags and categories.

For Example