10+ Sr. Wordpress Developer Interview Questions and Answers

Yes, I can create custom post types in Wordpress by using the register_post_type function.

• Use the register_post_type function to define a new custom post type

• Specify the labels, supports, and other parameters for the custom post type

• Add the register_post_type function in the functions.php file or a custom plugin

• Example: register_post_type( 'book', $args )

Yes, I can extend the functionality of a theme and plugin.

• I can create custom functions and hooks to extend the functionality of a theme or plugin.

• I can modify existing code to add new features or improve existing ones.

• I have experience with creating child themes to customize the appearance and functionality of a theme.

• I can integrate third-party APIs or services to enhance the functionality of a theme or plugin.

To include a custom css and js file in WordPress, you can enqueue them using functions.php file.

• Use wp_enqueue_style() to include custom css file

• Use wp_enqueue_script() to include custom js file

• Add the enqueue functions in functions.php file of your theme

• Specify the file path and dependencies in the enqueue functions

WordPress.com is a hosted platform where you can create a website, while WordPress.org is a self-hosted platform where you download the software and host it on your own server.

• WordPress.com is a hosted platform where you can create a website without needing to worry about hosting, updates, or backups.

• WordPress.org is a self-hosted platform where you download the WordPress software and host it on your own server, giving you more control and flexibility.

• WordPress.com offers lim...read more

Group product and variable product are types of product variations in WooCommerce.

• Group product allows customers to choose different variations of a product within a group, such as different colors or sizes.

• Variable product allows customers to choose variations of a product with different attributes, such as size, color, material, etc.

• Group product is used when variations are related and sold together, while variable product is used when variations are independent.

• Example: A ...read more

Upselling and downselling in WooCommerce involve offering customers additional products or services to increase the value of their purchase.

• Upselling is the practice of encouraging customers to buy a higher-end product or service than the one they originally intended.

• Downselling is the practice of offering customers a lower-priced alternative to the product or service they were considering.

• Examples: Upselling a customer from a standard WordPress theme to a premium theme with ...read more

A child theme is created by creating a new directory in the themes folder and adding a style.css file with specific information.

• Create a new directory in the themes folder of your WordPress installation

• Inside the new directory, create a style.css file with specific information like Template, Theme Name, and Author

• Optionally, you can also add a functions.php file to enqueue stylesheets and scripts from the parent theme

• Activate the child theme in the WordPress dashboard

Ajax can be included in WordPress by using the built-in admin-ajax.php file and enqueuing scripts properly.

• Use wp_enqueue_script() to include jQuery and your custom script

• Create a custom function in functions.php to handle the ajax request

• Use wp_ajax_{action} and wp_ajax_nopriv_{action} hooks to handle the ajax request

• Send data to admin-ajax.php using jQuery's $.ajax() method

Yes, I have worked on WP Rest API extensively.

• I have experience in creating custom endpoints using WP Rest API.

• I have integrated third-party services with WordPress using WP Rest API.

• I have used WP Rest API to fetch and display data from WordPress in external applications.

WordPress coding standards include naming conventions, indentation, comments, and file organization.

• Use lowercase letters and hyphens for file and folder names.

• Indent code with tabs or spaces for readability.

• Add comments to explain complex code or logic.

• Follow naming conventions for functions, variables, and classes.

• Organize files and folders logically, separating theme and plugin files.

Semantic tags are HTML tags that clearly define the content they contain for better structure and SEO optimization.

• Semantic tags provide meaning to the content within them

• They help search engines understand the structure of the webpage

• Examples include

  ,

Bootstrap 5 is the latest version with new features and improvements over Bootstrap 4.

• Bootstrap 5 is built with vanilla JavaScript instead of jQuery like Bootstrap 4.

• Bootstrap 5 has dropped support for Internet Explorer 10 and 11, focusing on modern browsers.

• Bootstrap 5 introduces a new grid system with improved spacing utilities.

• Bootstrap 5 includes a new logo and updated documentation.

• Bootstrap 5 has a smaller file size compared to Bootstrap 4.

Hooks in WordPress are functions that allow developers to 'hook' into specific points in the WordPress codebase.

• Hooks can be actions or filters.

• Actions allow developers to execute custom code at specific points in the WordPress lifecycle.

• Filters allow developers to modify data before it is displayed on the site.

• Examples of hooks include 'wp_head' action and 'the_content' filter.

The current CTC (Cost to Company) refers to the total salary package of an employee, including all benefits and allowances.

• CTC includes the basic salary, allowances, bonuses, and other benefits.

• It is the total amount that the company spends on an employee annually.

• CTC is different from take-home salary as it includes employer contributions to provident fund, insurance, etc.

• CTC is an important factor for job seekers to evaluate the overall compensation package.

• Example: If the ...read more