It seems your website is still running php 5.4.45. You can verify the same by creating a file with name phpinfo.php under your website with following code:

<?
phpinfo();
?>

Then access that page in browser to verify your PHP version.

Often multiple php rules in .htaccess on CloudLinux servers with CloudLinux PHP selector can cause such issues.

My question is this: if I have updated to PHP 7.3.5 at Bluehost, why won’t
my website run at 7.3.5 ?

Thanks for your continued help.

Sue Cohen
Bren-Books.com

I had to do the following:

Sign in at Bluehost.com> WordPress Tools> Performance> Scroll down to PHP Versions> Click on button PHP 7.0.

Then go to Updates.

I would recommend that this information is provided for your customers as I found this by chance after several hours.

By the way… no all plugins are compatible with PHP7 and it is always advised to test them before upgrading, there is a PHP test plugin that do just this.

I have a multi-site WordPress install with Blue Host and wanted to add the extra step I had to do for the PHP version to take.

I switched the version to PHP 7.0 as you did, however, it didn’t stay. I click on the View More button and was taken to the PHP Handlers page and from there I switched the domain to php70 and it worked.

Hope this info is helpful to others!