@msoft please tell me you are kidding.
Right here https://laracasts.com/series/php-for-beginners
Could you not have searched the series.
That course is absolutely free.
Even if you do not understand the language in the videos, the code is free on GitHub also.
You had this post
https://laracasts.com/discuss/channels/laravel/laravel-interview-questions-1
About laravel interview questions yet you are asking basic PHP questions here.
So you have an interview to write laravel applications but yet learning PHP.
Forgive me but I am confused.