PHP is it possible to upgrade the php version of an old script?

[Melodie]

hello community

is it possible to upgrade the php version of an old script?. for example from 5.3 to 8

regards

 

[qayyumbaige]

You have to migrate your depreciated code if is there is no depreciation you can use your old code many depreciations are made through PHP extensiond and little bit on code