Switch php versions on command line alternative

[yoyo]

[titreyoyo]Installing Multiple Alternative Versions of PHP[/titreyoyo]

Let’s give it a try

First things first, check out which version of PHP is being used on your local computer at that particular moment.

Code :

$ php -v

PHP 7.4.24 (cli) (built: Sep 23 2021 21:35:51) ( NTS )

Copyright (c) The PHP Group

Zend Engine v3.4.0, Copyright (c) Zend Technologies

    with Zend OPcache v7.4.24, Copyright (c), by Zend Technologies

Then, just take a look at which PHP versions you’ve got currently installed.

Code :

$ update-alternatives --list php

/usr/bin/php7.2

/usr/bin/php7.4

Here is how to switch among different versions of PHP.

Code :

$ sudo update-alternatives --config php

There are 2 choices for the alternative php (providing /usr/bin/php).

Selection    Path             Priority   Status

------------------------------------------------------------

* 0            /usr/bin/php7.4   74        auto mode

  1            /usr/bin/php7.2   72        manual mode

  2            /usr/bin/php7.4   74        manual mode

Press <enter> to keep the current choice[*], or type selection number: 1

update-alternatives: using /usr/bin/php7.2 to provide /usr/bin/php (php) in manual mode

After selecting number 1 in this particular example, you’d expect to obtain the following output if inspecting the PHP version, once again.

Code :

$ php -v

PHP 7.2.34-24+ubuntu18.04.1+deb.sury.org+1 (cli) (built: Aug 26 2021 15:55:24) ( NTS )

Copyright (c) 1997-2018 The PHP Group

Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.2.34-24+ubuntu18.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies

Source de l'information : https://medium.com/geekculture/installin...acc7af3260