PHP is particularly effective in creating dynamic web pages and web applications, making it an excellent choice for projects related to e-commerce, content management systems, and personalized web applications. However, PHP may not be the best choice for high-load applications that require great performance, such as real-time games, mobile applications, or IoT solutions. In such cases, technologies such as Node.js or Python may be more suitable. PHP also allows for quick API setup and is a common backbone for frontend applications in Vue or React.