在.htaccess中升级到PHP 5.3会导致浏览器下载文件

I'm helping someone out with a Wordpress 3.8 install on an older Hostgator account that uses PHP 5.2.17. I'd like to make use of some plugins which require 5.3+ .

According to Hostgator docs you should be able to simply add:

# Use PHP 5.3
AddType application/x-httpd-php53 .php

to your .htaccess file and get the desired result.

However, after adding these lines to the top or bottom of /public_html/.htaccess I get prompted to download a file in my browser when trying to visit the site:

enter image description here

Is there something obvious that could be causing this?

I got more clarification on the hosting environment. It is a HostGator VPS, which the docs state you need to submit a ticket - and not edit htaccess - to upgrade PHP.

It happened to me so many times.. just check you have this on your .htaccess (When your files are uploaded to Hostgator)

# Use PHP 5.3
AddType application/x-httpd-php53 .php

and be shure you have the same thing, but commented... using # on the .htaccess lines for your locakhost (because you must have already php 5.3 or later)

# Use PHP 5.3
#AddType application/x-httpd-php53 .php

This fixed me the same issue you had, but in my local.. because i can't see your http://** i don't know if that was on your local Best regards. :)