Change mac os x default php version

Question

In my mac (version 10.13.6 High Sierra) php -v output is PHP 7.1.32 . I need to update this 7.1 version to 7.3.

i tried to remove this version using brew unlink php7.1 but it's not worked.

How can i upgrade php version.

Answer 1

$ brew upgrade php : ( get the latest homebrew php packages )

$ brew install [email protected] : ( Install php 7.4 )

$ brew link [email protected] : ( create an alias to this keg-only version; see comments output during installation )

$ echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.bash_profile : ( Add the alias to your path; see comments output during installation )

$ source ~/.bash_profile : ( Reload .bash_profile to use the new settings immediately )

Reference : How to use the php that brew installed?

Answer 2

First:

~ brew update

then install the latest php version (PHP 8.0.8 in the time of writing):

~ brew install php 

link new version to /usr/local/Cellar/php/8.0.8:

~ brew link php

then open the shell's resource file, located in ~/ (in my case Z-shell or ZSH):

~ sudo vi .zshrc

press i to insert and somewhere in your resource file append a new path to your $PATH variable, like this:

export PATH=$PATH:/usr/local/opt/[email protected]/bin

or in the case of ZSH, you should also be able to do it like this:

path+=('/usr/local/opt/[email protected]/bin')
export PATH

then press esc to escape from insert mode, and press :wq to save/write and quit the editor. The final step is to source the file to apply new changes permanently.

~ source .zshrc

Try new PHP version:

~ php -v

Answer 3

I am not sure about the 10.13.6 High Sierra version, but this worked for me.

1. php -v (To see what version php has. But you have already done that)

2. brew unlink php55 (In my case I use php 5.5)

3. brew install php73 (For the php 7.3 version.)

4. php -v (To check of the version is the one I need.)

Hope this helps.