My phone won’t accept a certain charger

I have this charger that i bought from five below, it has always worked, never any problems. but recently my phone will not charge with it. sometimes it will accept it but other times it won’t, i thought that maybe i had to get a new one but it works perfectly fine with my ipad and my phone is charging with an apple charger but i like my long cheap charger better. i tried to get it to work for ten minutes, i unplugged it from the wall, i took it out of my phone and reinserted it a different way, i even restarted my phone. i just don’t understand what is wrong with my phone