PHP is a server-side scripting language designed for web development, enabling dynamic page generation, server-side processing, and database interaction for web applications.

What are PHP magic methods?

Magic methods are special methods in PHP that are called automatically when certain conditions are met, such as __construct, __get, __set, __call, enabling operator overloading.

What is autoloading in PHP?

Autoloading is a mechanism in PHP that automatically includes class files when they are instantiated, eliminating the need for manual include statements using __autoload or spl_autoload_register.

PHP Interview Questions

91. What are REST APIs and how are they implemented in PHP?

92. How does authentication work in API-driven PHP systems?

93. What are JWT-based authentication flows in PHP?

94. How do logging systems work in PHP applications?

95. What are common PHP testing strategies?

96. How does PHPUnit work?

97. What are unit, integration, and feature tests in PHP ecosystems?

98. How do deployment strategies differ for PHP applications?

99. What are common performance bottlenecks in PHP systems?

100. How would you architect a scalable PHP backend for a growing engineering organization?