How to change PHP version used by composer

Question

I want to use another php version on my machine than the one already installed using WAMP  2 PHP version installed      The composer installed uses PHP 5 6  A new project requires PHP7 0     Whenever I choose PHP 7 from the control panel of WAMP and then run php -v it still printing PHP5 6  CLI     instead of PHP7   How can I use PHP7 without reinstalling the composer again

User · Answer

Another possibility to make composer think you're using the correct version of PHP is to add to the config section of a composer.json file a platform option, like this:

"config": {
    "platform": {
        "php": "<ver>"
    }
},

Where <ver> is the PHP version of your choice.

Snippet from the docs:

Lets you fake platform packages (PHP and extensions) so that you can emulate a production env or define your target platform in the config. Example: {"php": "7.0.3", "ext-something": "4.0.3"}.

User · Answer

Old question I know  but just to add some additional information   WAMP is used only on Microsoft Windows Operating Systems  Changing the version of PHP used through the left-click - gt  PHP - gt  Version menu changes the version used by Apache to server your site  Changing the version of PHP used through the right-click - gt  Tools - gt  Change PHP CLI Version menu changes the version used by WAMP s PHP CLI   Note  It is important to understand that the  quot PHP CLI Version quot  is used by WAMP s own internal PHP scripts  This  quot PHP CLI Version quot  has nothing to do with the version you wish to use for your scripts  Composer or anything else  For your scripts to work with the version you require  you need to add it s path to the Users Environmental Path  You could add it to the Systems environmental Path but the Users Path is the recommended option  From WAMP v3 1 2  it would display an error when it detect reference to a PHP path in the System or User Environmental Path  This was to stop confusion such as you were experiencing  Since v3 1 7 the display of this error can now be optionally displayed through a selection in the WampSettings menu  As indicated in previous answers  adding an installed PHP path  such as  quot C  wamp64 bin php php7 2 30 quot   to the Users Environmental Path is the correct approach  PS  As the value of the Users Environmental Path is a string  all paths added must be separated with a semi-colon     After experiencing the exact same problem  IE  Choosing which version of PHP I wanted Composer to use   I created a script which could easily and rapidly switch between PHP CLI Versions depending on what project I was working on  The Windows batch script  quot WampServer-PHP-CLI-Version-Changer quot  can be found at https   github com custom-dev-tools WampServer-PHP-CLI-Version-Changer I hope this helps others  Good luck

User · Answer

I found out that composer runs with the php-version  usr bin env finds first in  PATH  which is 7 1 33 in my case on MacOs  So shifting mamp s php to the beginning helped me here   PHPVER    usr libexec PlistBuddy -c  print phpVersion    Library Preferences de appsolute mamppro plist   export PATH  Applications MAMP bin php php  PHPVER  bin  PATH

User · Answer

You can change php version of composer without uninstalling it  follow these steps     Search for system environment variables in cortana  Click on the button  Environment variables   Under  System variables  select path and click on edit  you will see one entry like this  C  wamp bin php php5 6 13   Just change this to the folder name of the php located at your wamp bin php7 1 9  here php7 1 9 is folder name  Replace php5 6 13 with bin7 1 9  it will look like these  C  wamp bin php php7 1 9   just click ok on all the boxes  You are done  To verify  first close all the cmd windows  than open cmd and type php -v  press enter and you should see php7 1 9  If you don t see change in php version than just restart your pc and run php -v again in cmd   it will work

User · Answer

If anyone is still having trouble  remember you can run composer with any php version that you have installed e g    php7 3 -f  usr local bin composer update  Use which composer command to help locate the composer executable

User · Answer

I m assuming Windows if you re using WAMP    Composer likely is just using the PHP set in your path  How to access PHP with the Command Line on Windows    You should be able to change the path to PHP using the same instructions   Otherwise  composer is just a PHAR file  you can download the PHAR and execute it using any PHP   C  full path to php exe C  full path to composer phar install

[php] How to change PHP version used by composer

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