learning php is certainly not a bad thing. you may get assigned to a legacy code at a certain company that's written in php and your php knowledge would come in handy there. php is not so bad lol. it's just that there is better options out there.

i totally get what you're saying about the uni stuff being stone age. i also was taught using php and the content of the course was too basic to be used in a real world scenario. plus in development using laravel is a savior, so don't worry about php too much.