Enabling REDIS breaks inputs, Call to undefined function utf8_encode() input_model.php on line 332

[pb66 (Paul)]

I haven’t looked into this closely, but if you are still having troubles with this, could you please try backdating php-redis to an earlier version to test?

sudo pecl install redis-3.1.6
sudo redis-cli flushall
sudo service apache2 restart

Whilst we haven’t had any feedback yet, we are aware there were some “code breaking changes” in post v4 versions (their words not mine/ours).

Local Ubuntu Emoncms and Redis

Perhaps @Lykke can confirm what he see’s once he has got it installed. I do not have v4.0.1 installed yet to test and I have just found a note in the changelogs stating there are “breaking changes” in post v4 versions, I do not know if they affect us or how to test for them so I have opened an issue on emoncms that hopefully @TrystanLea or @nchaveiro might be able to answer. I cannot say yet whether v4 is a problem of if emoncms requires change, but worse case scenario I guess is that you …

Possible breaking api changes in php-redis

@Andrew_Baker

One thing I noticed is that in phpinfo redis shows as version 4.0.2, and in the server info page it shows as 4.0.9

The seerver info shows the Redis SERVER as version 4.0.9, but the Redis extension for PHP (php-redis) is reported as “redis v4.0.2” in the last “PHP - Modules” section.

Something else you might want to try, is commenting out line 332 from input_model.php, it was recently left out during a reshuffle after being introduced to fix an issue with the inputs page not loading quite a while back, it was only fixed again a couple of weeks ago, so emoncms will/should work without the “$row[“description”] = utf8_encode($row[“description”]);” line, but might just fail to show the inputs page in a browser but inputs should be processed ok.