How to change PHP version to installed on VPS?

[kaavain]

Hi all

The problem: I need a PHP 5.3 (shit, confirmed).
Installed Ubuntu 16.4, installed PHP 5.3.29
# php -v == 5.3.29

But after installing Vesta, if to launch phpinfo.php => PHP version turns to be 7.0... I'm sad.

I do not need any selectors. I just need to launch one website on PHP 5.3, so is it any simple way to force Vesta to use server's PHP on the website?

[sexiestpicture]

Trying to understand what you are saying.

So it is running 7.0 and you want it to be running 5.3?