How do I upgrade PHP in Mac OS X?

Question

I feel this is an awfully obtuse question to ask, but strangely, this problem is poorly documented.

I would like to upgrade PHP, but there are several problems:

Answer 1

Check your current php version in terminal with the following command,

$ php -v

You see current php version in terminal, and next command run in terminal if you want to upgrade your php version with php concat with version liked as,

$ brew install homebrew/php/php71

Please restart terminal if you finished php version upgrade installed and run the command.

$ php -v

Now you see the current php version in terminal....thank