PHP Test

Why this matters?

PHP 7 is a significant update to the PHP language, with performance and security improvements over PHP 5. A PHP Test professional must be able to explain the differences between PHP 5 and PHP 7 and know how to upgrade from PHP 5 to PHP 7.

What to listen for?

Listen for the candidate's ability to explain the key differences between PHP 5 and PHP 7 and their familiarity with the upgrade process. A good answer should demonstrate a clear understanding of the new features and improvements in PHP 7, as well as an ability to identify and resolve any potential compatibility issues.

Why this matters?

Connecting to a database and executing SQL queries is a fundamental task in web development using PHP. A PHP Test professional must be able to use PHP to effectively connect to a database and execute queries.

What to listen for?

Listen for the candidate's ability to explain how to use PHP to connect to a MySQL database, and how to execute SQL queries using PHP's database functions. A good answer should demonstrate a clear understanding of how to securely connect to a database, as well as an ability to write efficient and effective SQL queries.

Why this matters?

Authentication and authorization are critical security features for web applications, and PHP provides functionality for implementing these features. A PHP Test professional must be able to use PHP to effectively implement authentication and authorization on a web application.

What to listen for?

Listen for the candidate's ability to describe their process for implementing authentication and authorization using PHP. A good answer should demonstrate a clear understanding of the principles of secure authentication and authorization, as well as an ability to use PHP's built-in functions or third-party libraries to implement these features.

Why this matters?

Integrating with third-party APIs is a common task in web development, and PHP provides functionality for interacting with these APIs. A PHP Test professional must be able to use PHP to effectively interact with third-party APIs.

What to listen for?

Listen for the candidate's ability to explain how to use PHP to interact with third-party APIs, including authentication and error handling. A good answer should demonstrate a clear understanding of how to securely connect to and use APIs, as well as an ability to parse and manipulate API responses.

Why this matters?

Performance optimization is a critical aspect of web development, and PHP provides many tools for optimizing performance. A PHP Test professional must be able to optimize a PHP application for performance.

What to listen for?

Listen for the candidate's ability to describe their process for optimizing a PHP application for performance, including using caching, profiling, and other performance optimization techniques. A good answer should demonstrate a clear understanding of the common performance issues in PHP applications, as well as an ability to identify and resolve these issues.