How to change path to PHP executable in Putty?

Question

PuTTY

Good afternoon! My project is located on a remote hosting reg.ru and in the project itself I need to load a module, I connected via ssh to the putty command line and any command I enter causes an error: -bash: /usr/bin/php5: No such file or directory. And my path looks something like this: /opt/php/5.6/bin/php. How can I change the path to the php executable in putty?