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Using Joomla 3.9.8

I recently migrated from localhost (PHP 7.1.9) to a live server (PHP 7.2)

On localhost my site was installed at localhost/mysote. On my live server it's installed at dev.example.com/mysite

When I view my site on the live server I see the following notice;

Error We have detected that your server is using PHP 5.6.37 which is obsolete and no longer receives official security updates by its developers. The Joomla! Project recommends upgrading your site to PHP 7.1 or later which will receive security updates at least until 2019-12-01. Please ask your host to make PHP 7.1 or a later version the default version for your site. If your host is already PHP 7.1 ready please enable PHP 7.1 on your site's root and 'administrator' directories – typically you can do this yourself through a tool in your hosting control panel, but it's best to ask your host if you are unsure.

Does the fact that the site is installed on a subdomain make any difference?

I have a site installed at example.com and it's working fine, no PHP errors.

I had a look at the .htaccess on the subdomain and there's no mention of a PHP version, so it's not set manually.

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Installing Joomla in a subdomain should make no difference as far as the PHP version is concerned.

The likely explanation is that there is a directive in the .htaccess file overriding the default PHP version but you have already checked this.

To fault find this issue, I recommend:

  1. Creating a phpinfo.php file in the root folder of the subdomain and browsing to the file to check what PHP version is reported. Your phpinfo.php file should contain:

    <?php phpinfo(); ?>

    Remember to delete the file after use.

  2. In Global Configuration, temporarily disable URL Rewriting and then temporarily rename your .htaccess file to htaccess.disabled or similar. If the warning message disappears, then you may need to take a closer look at the .htaccess file.

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