New websites are setup with latest PHP version by default (currently PHP 7.0). 000webhost support all major versions of PHP.
There are many cases why you would like to switch to lower version of PHP. Gladly this is very easy to do in 000webhost panel.
- Login to members area
- Select your website you wish to change
- Go to
Settings -> General
- Scroll down until section
- Click on
Change PHP versionand select new one
Thats it. Your website now is served by new PHP version.