PHP Development, being a programming language allows web developers to create dynamic content that interacts with databases. It is an open source, interpretive, HTML centric, server side scripting language; especially suited for web development and can be embedded into HTML pages.
MySQL (pronounced "my sequel") is an open source relational database management system (RDBMS) that uses Structured Query Language (SQL), which is the widely used language for transactions such as adding, accessing, and processing data in a database. MySQL is used for web applications and for embedded applications and has become a popular alternative to proprietary database systems because of its speed and reliability.