ibmcloud fn action create <ACTION-NAME> --docker openwhisk/action-php-v8.0 FILE.php --web true
If you were already using the PHP 7.3 runtime, you can run
ibmcloud fn action update instead.
You can zip multiple files with .zip instead of
FILE.php and specify it.
The source will work almost in common with the PHP 7.3 runtime.
This operation requires CLI to edit the source. (Cannot be edited from the console)