Top 50+ PHP Interview Questions and Answers in 2026

The web development industry is growing at a fast pace over the last few years because of the norm of digitization. Whether you talk about eCommerce website development or dynamic web development, PHP lies at the heart of building flexible and functional sites. 

This has given a rise to the demand for PHP developers in India and globally. Not only big brands and enterprises, but also web development agencies around the world are hiring skilled PHP developers.

The salary of a PHP developer in India is also lucrative. There is a skill gap between the demand and the number of skilled developers. By learning it with a practical web development course or PHP training, you can jumpstart your career in this field.

But before applying for a job, you must go through the most asked PHP interview questions and answers. It will help you crack the interview and get your dream job at the desired organization. 

In this comprehensive write-up, the series of questions will help you understand the complete concept of PHP. You can prepare for the job interview precisely and in the best way with these top-tier interview questions for PHP developers.

We have covered almost every question that is asked in an interview on PHP development. This article will also cover questions for a senior developer job profile as well. 

Introduction to PHP Programming Language

PHP stands for PHP Hypertext Preprocessor. It is an open-source scripting language widely used on the server-side.

PHP is mostly used for creating mobile APIs and dynamic websites. It is used for creating web pages and apps.

PHP programming language supports various databases like Oracle, MySQL, Solid, Sybase, PostgreSQL, etc. The code in PHP is embedded in HTML.

It is used to manage the tracking of any session on a server, managing dynamic content, managing databases, etc. Websites like e-commerce can also be created with PHP. Almost every web hosting server support PHP.

Things You Must Know Before Preparing for PHP Interview Questions

You should know what PHP is and what are the common areas where it is used. Along with the core PHP interview questions that will check your knowledge and skill set, you must also go through these things before going for the interview:

• Know about the company
• Go through common interview questions on PHP programming
• Take mock interview
• Build an appealing and professional web developer resume and print copies of it
• Prepare some notes for fast revision of topics that are new to you
• Ensure formal attire and professionalism 

Basic PHP Interview Questions for Freshers

Go through these PHP interview questions and answers for freshers and experienced to get your desired job as a PHP developer. These questions are designed with the demand, and are generally asked in the hiring round.

1. What is PHP?

PHP stands for PHP Hypertext Preprocessor. It is a scripting language that is used for web development. It is an open-source language that is embedded into HTML. When a server executes the code, then the client gets a generated HTML.

2. Who is PHP Developer?

A PHP developer is a programmer who writes code at the server-side for web application logic. These programmers generally develop components that are supported at the back-end.

These developers connect the application with third-party web services and integrate the codes with the application to support the front-end web application logic.