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Author: Admin | 2025-04-28
The PHP GroupZend Engine v4.2.3, Copyright (c) Zend Technologies with Zend OPcache v8.2.3, Copyright (c), by Zend TechnologiesStep 4: Change Default PHP VersionIn Ubuntu, multiple versions of PHP can be installed and used side-by-side. However, only one version can be set as the default at a time. If you have multiple versions of PHP installed and you want to change the default PHP version, follow the steps below:Check the available PHP versions by running the following command:ls /usr/bin/php* This command will list all the available PHP versions installed on your system.To change the default PHP version, you can use the update-alternatives command. For example, if you want to set PHP 7.4 as the default version, run the following command:sudo update-alternatives --set php /usr/bin/php7.4 This command sets the /usr/bin/php7.4 binary as the default php command.If you have installed php-dev package, then you also need to set phpize and php-config as default.sudo update-alternatives --set phpize /usr/bin/phpize7.4 sudo update-alternatives --set php-config /usr/bin/php-config7.4 To verify the default PHP version, run the following command:php -v This command should display the version of PHP that you just set as the default.By default, only one version of PHP can be set as the default, but multiple versions can be installed and used side-by-side. Remember to verify the default PHP version after making any changes.ConclusionIn this article, we have discussed how to install PHP 8.2, 7.4, and 5.6 on Ubuntu 18.04. You can choose the version of PHP that you need for your project, depending on its requirements.
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