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How do I change the PHP version of my site?

 3 years ago
source link: https://help.dreamhost.com/hc/en-us/articles/214895317-How-do-I-change-the-PHP-version-of-my-site-
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How do I change the PHP version of my site?

If you need assistance updating your site to support modern versions of PHP, DreamHost's Professional Services may be able to assist you in updating your code.

Overview

As DreamPress is a service managed by DreamHost, the minimum supported PHP version cannot be lowered. However, a DreamPress staging website can be used to test higher versions of PHP, and publish those changes to your live DreamPress site. View the following article for more details:

DreamHost offers several versions of PHP. When you add a site, there is an option to choose which version you'd like to use, but you can also change this version at any time in the panel.

Changing the PHP version

To change the PHP version on any of your domains/subdomains within the panel:

  1. Navigate to the Manage Websites page.
  2. Click the Manage button to the right of your domain.  Change PHP version
  3. Under the PHP section, click the Modify icon. Change PHP version
  4. Choose a version of PHP from the dropdown menu.
  5. Scroll down and click the Change PHP Version button to save your changes.

Changing the PHP version on your site using an .htaccess file

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Be cautious when using this method over long periods of time. If you use .htaccess to force a version that has reached its End of Life, your site may experience issues when that version is removed from the server.

Aside from changing the settings in the DreamHost panel, you can also change the PHP settings using an .htaccess file.

View the following articles for instructions on how to create or edit your .htaccess file:

Simply add the following two lines in your .htaccess file which forces PHP to use PHP 7.4:

AddHandler fcgid-script .php 
FCGIWrapper "/dh/cgi-system/php74.cgi" .php

If this causes any problems, then remove the lines to switch back to your previous settings.

Making this change also adjusts the PHP version displayed in your panel on the Manage Websites page. However, it may take up to 24hrs for it to update.

Choosing between CGI and FCGI

View the following article for differences between CGI and FCGI.

See also

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