!Rant
Do you guys know any website that challenges​ you into coding little programs (for me, php) to solve problems ?
I mean, it would be to train my skills with actual kind of real world problems, not just hello worlds or simple "how-to" codes.

I signed up to a contest recently and I felt really dumb not to be able to find solutions faster or with more efficiency (FYI : I was ranked 1049/2300 all languages included :( )