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Complete Guide to Crack Job Interviews Successfully

Interview Preparation & Common Interview Questions

Master job interview skills with expert interview preparation, frequently asked interview questions, HR interview tips, technical interview guidance, and confidence-building strategies to secure your dream job.

PHP (Hypertext Preprocessor) is an open-source, server-side scripting language used to develop dynamic and interactive websites and web applications. PHP works with databases like MySQL and powers popular platforms such as WordPress, making it one of the most widely used web development languages.

WordPress is the world's most popular Content Management System (CMS), built using PHP and MySQL. It allows users to create blogs, business websites, e-commerce stores, portfolios, and custom web applications without building everything from scratch.

  • PHP is a programming language used for backend web development.
  • WordPress is a CMS built using PHP.
  • PHP is used to create custom applications, while WordPress helps develop websites quickly using themes and plugins.

CRUD stands for:

  • Create – Insert data into the database
  • Read – Retrieve data
  • Update – Modify existing data
  • Delete – Remove data

CRUD operations are the foundation of database-driven web applications.

  • GET sends data through the URL and is suitable for retrieving information.
  • POST sends data securely through the request body and is commonly used for login forms, registrations, and sensitive information.
  • Sessions store user data on the server and are commonly used for login authentication.
  • Cookies store small amounts of data in the user's browser to remember preferences and login information.

Both are used for user management and maintaining login sessions.

  • A Theme controls the design, layout, and appearance of a WordPress website.
  • A Plugin adds extra functionality such as contact forms, SEO, security, e-commerce, and performance optimization without modifying the core WordPress files.

Website security can be improved by:

  • Validating and sanitizing user input
  • Using prepared SQL statements
  • Hashing passwords
  • Keeping WordPress core, themes, and plugins updated
  • Installing SSL certificates
  • Taking regular backups
  • Using security plugins and strong authentication

These practices help protect websites from common vulnerabilities.