[lubuntu-users] Lubuntu 16.04 PPC: Cacti stopped working after PHP upgrade

[Peter Golis]

Hello Gentleman,
Yesterday, after upgrade of PHP v7 package with removal of older version of PHP v5 had stopped working my Cacti instance. What had please happened with PHP v5, was it marked as obsolete?
 
Error in cacti.log had pointed to missing function mb_strlen() which was moved into separate package php7.0-mbstring in PHP v7. After installing it, Cacti was back in life. That simply point to wrong dependencies for package Cacti. Are somewhere tested also dependencies for packages? 
 
[Fri Mar 25 21:23:20.098957 2016] [:error] [pid 18311] [client 127.0.0.1:34556] PHP Fatal error:  Uncaught Error: Call to undefined function mb_strlen() in /usr/share/cacti/site/lib/rrd.php:1049\nStack trace:\n#0 /usr/share/cacti/site/graph_image.php
(92): rrdtool_function_graph('36', '0', Array)\n#1 {main}\n  thrown in /usr/share/cacti/site/lib/rrd.php on line 1049, referer: http://rybnik.zapto.org/cacti/graph_view.php
 
Have a nice day,
Peter.