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How do virtual hosts achieve the coexistence of multiple php versions? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

There are multiple PHP versions of the virtual host that can be switched and selected. in practice, only one version can be supported, and multiple versions cannot be used together.

In the virtual host, there is a "PHP version" function, and the webmaster can choose the desired version according to the needs of the project.

Currently, PHP versions are available: php5.2, php5.3, php5.4, php5.5, php5.6, php7.0, php7.1, php7.2, etc., as well as Php-fpm models, such as php5.6, php7.0, php7.1, php7.2 and so on.

How to choose the version of PHP?

PHP version, need to be determined according to the project, for example, we build a website, according to the site system requirements to choose. For example, the common WordPress, earlier versions, can use the PHP5.2 version and later, while the latest WordPress must be under PHP5.6 and later to work.

Is the higher the PHP version, the better?

This is not certain, although in the higher version of PHP, there will be more features, such as php7.2: new object types, allowing abstract methods to be overridden (Abstract method), generating password hashes using the Argon2 algorithm, adding ext/PDO (PDO extension) string extension types, extending parameter types, allowing grouping of namespaces trailing commas, and so on. However, if the website system used is very old, then the high version will be incompatible, some of the effects can not be shown, choose the lower version can be better reflected.

This is the answer to the question about how to realize the coexistence of multiple php versions of the virtual host. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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