Top Resources to become a Better PHP Developer

I have curated list of sites for anyone who wishes to learn PHP without spending a single penny :)

1. Free interactive PHP learning https://www.sololearn.com/learning/1059
2. Free PHP course https://www.educative.io/courses/learn-php-from-scratch/m2M2M8o7EA3
3. Free coding challenges https://edabit.com/challenges
4. Core php theory and concepts https://codelabs.greycampus.com/php/introduction
5. PHP fundamental course by codecademy https://www.codecademy.com/catalog/language/php