There are several reasons why someone might choose to use Django over PHP for building web applications:

1. Django is a high-level web framework that is specifically designed for building web applications quickly and efficiently. It has a number of built-in features and tools, such as an ORM (Object-Relational Mapper) and an automatic admin interface, which can make it easier to build and maintain web applications.

2. Django follows the Model-View-Template (MVT) architectural pattern and uses a more object-oriented approach to coding, which can make it easier to write reusable, maintainable code.

3. Django has a large and active community of developers who contribute to the framework and create third-party libraries and tools. This means that there is a wealth of resources and support available for Django developers.

4. Django is written in Python, a popular and easy-to-learn programming language that is widely used in the industry.

5. Django has excellent documentation and a user-friendly API, which makes it easier for developers to learn and use the framework.

Overall, Django is a powerful and flexible web framework that is well-suited for building a wide range of web applications. While PHP is also a popular and widely-used language, Django's focus on web development and its built-in features make it a strong choice for many developers.