PHP is widely used in the development of web-based and other applications in all domains. The following are a few technologies that PHP supports:  

• Content Management System.
• Web-based applications and development of sites.
• E-commerce websites and applications.
• Data Analytics and Representation.
• Processing of Images.
• Graphical interface design-based applications.

Advantages of PHP :  

• PHP's main advantage is that it's open-source and free. You can download it anywhere and use it for events or web applications immediately. 
• There is no platform dependency. A PHP-based application can run on any OS, including UNIX, Linux, and Windows. 
• Loading PHP-based, database-connected applications is easy. Due to its faster loading speed over slow internet speeds, it is mostly used by programmers. 
• Due to its simplicity and straightforwardness, it has a low learning curve. It is easy for someone who is familiar with C programming to work with PHP. 
• After providing continuous support to various versions for a few years, it has become more stable. 
• It reduces the need to write lengthy codes and complex structures for events of web applications by reusing equivalent code.