I have installed SS3 successfully a couple of times on my local machine but my VPS doesn't want to know about it. It gives an error:

Fatal error: Call to undefined function mb_http_output() in /home/bbowden/public_html/framework/core/Core.php on line 206

This server holds already multiple instances of SS2.4. A quick code check shows that SS2.4 checked for the existence of mb_http_output before calling it while SS3 assumes it exists.

Looks like I need to work out how to install this module on my server or edit my SS3 core.php file. I don't like the second option but then again I have no idea how to attack the first. Google, here I come! (and I hope I don't break my server.)

Looks like SS3 also requires MySQLi which was optional under SS2.4.

Discovered Easy Apache which makes compiling and installing new versions of PHP relatively pain-free.

SS3 is now running successfully.

Helpful reply in that it helped me work with EasyApache but after trying this fix, updating the code to the latest release all it seems to have done is move the error line to 232.

Fatal error: Call to undefined function mb_http_output() in /home/spijker/public_html/ss/framework/core/Core.php on line 232

Any suggestions?

Cheers

Hi there,

SilverStripe requires the mbstring PHP extension is installed. Could you confirm you've got that installed?

Sean

Still getting Fatal error: Call to undefined function mb_http_output() in in all my SS installs on my VPS on my local Windows dev machine using a WAMPSERVER environment.

MySQLi is running and so is mbstring.

These are the two issues I am aware of but still they do not work.

Any suggestions?

Just in-case anyone finds this issue on Google, I fixed my issue with this on Ubuntu 16 and PHP7.0 with the following:

sudo apt-get install php7.0-mbstring

If you have installed this already, or you just installed it make sure to enable it:

phpenmod mbstring

followed by:

apachectl graceful

Good luck!

@ryanpotternz Are you running SS3 or 4 on php 7?

@TheBnl it was/is 3.6.1