Hi, do you mind asking this question in Piwik Forum https://forum.piwik.org/ ? Here in our issue tracker we handle only bugs and features.

Hi,
Thanks for your response,
I have asked the same in piwiki forum, matthieu requested to post it as a bug in github.
Here's the link
https://forum.piwik.org/t/about-php-version-used/18579

Thx for that and sorry for closing the issue. The issue sounded like a question and not like a needed feature :)

I'm not quite sure where Piwik is supposed to pick up another PHP. Do you mean when running the archiving process on the command line eg as a cronjob?

At that time of installation, as part of system check, it errors out as mbstring module is missing.
I have installed mbstring in another location but not on system's default php. Looks like piwik picking up system's default php, need a way to configure the piwik to pickup php from user defined location.

Isn't this a webserver (apache / nginx / ... ) configuration? How do you manage the different installed PHP versions etc? I'm not sure if this is actually an issue of Piwik.

@arulmuruganas do you maybe have a chance to answer question above?

As we have not heard from you, closing the issue. Feel free to comment and re-open if you still experience the issue and have more info.

Hi Thanks for your response, scenario is default version of machine's php do not have some of the modules required by piwik, as a result am unable to install piwik. So i have installed php with required modules in a specific location and i wanted piwik to pick the php from that location.

FYI here is the code that looks for the PHP binary: https://github.com/piwik/piwik/blob/2.16.2/core/CliMulti/CliPhp.php#L15-L58