Periodically newer versions are released for PHP software either due to security flaws or to include additional functionality. Using the latest PHP version for web apps is recommended in order to take advantage of security fixes, if any, and/or additional functionalities of the newer version.
Perform the following in the Azure Console:
Perform the following in Azure Command Line Interface 2.0:
To see the list of supported runtimes.
az webapp list-runtimes | grep php
To set latest PHP version for an existing app, run the following command.
az webapp config set –resource-group <RESOURCE_GROUP_NAME> –name <APP_NAME> –php-version <VERSION>