Logger.php throwing PHP errors

Question

I'm getting some issues with some EE php errors, i believe its related to the EE Zoo Triggers Add On, but im finding it really tricky to debug and get the feeling I may be searching in the wrong place.

A PHP Error was encountered
Severity: Notice    
Message: Undefined index: timestamp    
Filename: libraries/Logger.php    
Line Number: 121

A PHP Error was encountered
Severity: Notice    
Message: Undefined index: log_id
Filename: libraries/Logger.php
Line Number: 127

Error Number: 1054
Unknown column 'year' in 'field list'
UPDATE `exp_developer_log` SET `year` = NULL, `month` = NULL, `count` = '0', `viewed` = 'n', `timestamp` = 1354016532 WHERE `log_id` IS NULL
Filename: libraries/Logger.php
Line Number: 128 

There is a little more info, error lines etc on a ticket in the devotee forums but i wanted to put it out to the EE community, see if any of you guys have come across similar errors and might be able to help resolve

Here is a little more info on what we have investigated so far:

Im running EE 2.5.3 & PHP 5.2.17. Its triggered when I add the achieve or categories list tags:

{exp:zoo_triggers:categories    
    channel="tours"  
    path="{structure:page:uri}/region"   
    show_counter="yes"   
    style="list"
}

OR

{exp:zoo_triggers:archive    
    channel="blog"   
    path="/blog/archive"  
    type="monthly"   
    style="list"
 }

I use stash so these calls i from within Stash set / append tags etc. Only other strange issue is that it some cases (when logged in) it loads in the first instance and then breaks on refresh or when clicking through to an archive link for example, then the error persists. Clearing the ee cache or removing / reassigning the structure listing resolves for that first visit again.

...

It’s somewhat strange because the function where the errors occur must be directly called, and that isn’t so in Zoo Triggers nor in the version of Stash that I’m currently testing. Can you do a project search on: ->developer( So we can have a better look what add-ons are calling the function directly.

...

Its odd, only references i can find are from the ee core: system/expressionengine/core/EE_loader.php - line 136 system/expressionengine/libraries/EE_Form_validation.php - line 438 system/expressionengine/libraries/Logger.php - line 186 system/expressionengine/modules/search/mod.search.php - line 186

...

Source http://devot-ee.com/add-ons/support/zoo-triggers/viewthread/7935

Many thanks,

Sam

Answer 1

The best way to diagnose PHP errors is to dig into the code and report the culprit. Do this:

Open system/expressionengine/libraries/Logger.php

At line 120 (right before your first error message), add this:

if ( ! isset($duplicate['timestamp']))
{
    debug_print_backtrace();
    exit;
}

Now taking a look at that particular part of the EE code, I really can't see what would cause those PHP errors you're seeing. Some code is trying to create a developer log entry and making a mess of things. It's likely to be an EE bug.

At least this should help you figure out what add-on is responsible for the problem!