Which one is better for web development ??

Question

1) Django framework & python
2) SQL & PHP
3) JavaScript & React

Answer 1

None is better, they quite all do different things, and even if they serve the same purpose, it's totally realistic to mix different technologies depending of service you want to implement (for server side) or are complementary (concerning JS and any framework on client side -- anyway, none JS framework could avoid JS engine under the hood ^^).

Quid of Java & Spring, Php & one of its web framework, or Python & one of its numerous others web frameworks (from micro, as Bottle or Flask, through middle sized CherryPy or Web2py, to biggest -- among wich Django -- as TurboGears or Pyramid -- you could even handle HTTP request/responses with only the Python standard library, even if in production that wouldn't be realistic -- https://hackermoon.com/top-10-python-web-frameworks-to-learn-in-2018-b2ebab969d1a )...

SQL is related to database, and can be used with any server sided or even on a LAN, or localy in a standalone personal computer...
There are also other database type such as MongoDb, and ORMs are missing ^^