Custom Field Error on Event Registration. Version 4.3.1 with WordPress

[KilakwaBT]

I am getting the following when I add custom fields to a registration form. This error comes up if the form is submitted without all the required fields complete. Also it seems to be related to fields that are a series of check boxes. Alpha Numeric fields don't seem to be an issue. Here are the errors:

Warning: explode() expects parameter 2 to be string, array given in <site home folder>/public_html/news/wp-content/plugins/civicrm/civicrm/CRM/Core/BAO/CustomGroup.php on line 1429

Warning: Invalid argument supplied for foreach() in <site home folder>/public_html/news/wp-content/plugins/civicrm/civicrm/CRM/Core/BAO/CustomGroup.php on line 1432

I reloaded the file Core/BOA/CustomGroup.php. No change.

Thanks in advance for any guidance.

[Yashodha Chaku]

can you reproduce it on our demo (http://demo.civicrm.org/)

-Yashodha

[KilakwaBT]

Worked fine in demo. Happened in two separate installs on my server. Both were upgraded from previous versions. Could that have something to do with it?

[jsimonis]

I get the same thing on my site, which is also an upgraded version.

[KilakwaBT]

I got some time to setup a fresh install on my testing server and the error doesn't occur. Definitely upgrade related. I am going to do some work on my upgraded install to see if I can come up with a fix. If anyone has any thoughts please let me know.

Thanks

BT

[teleute]

I just got the exact same thing on a non-upgraded site.  (No Wordpress link, however - it's installed as a Joomla component.)

[KilakwaBT]

I am getting the error on the new install. In my earlier test I forgot to leave a required field blank. If I do that I get the error. Only with check boxes though. Radio Buttons & Select Lists are working fine.

[KilakwaBT]

I think I have found the issue.

I went into the file: <site home folder>/public_html/news/wp-content/plugins/civicrm/civicrm/CRM/Core/BAO/CustomGroup.php
On line 1424 is the following:           if ($field['html_type'] == 'CheckBox' ||

I added a space after the x in Checkbox and everything works fine. I don't have time to check in another install right now. Will try later. Something to look for.

BT

[sonicthoughts]

I have same error on 4.3.3 Drupal:
Location   https://xxx.com/civicrm/event/register
Referrer   https://xxx.com/civicrm/event/register?id=542&reset=1
Message   Warning: explode() expects parameter 2 to be string, array given in CRM_Core_BAO_CustomGroup::extractGetParams() (line 1429 of /home/xxx/public_html/drupal/sites/all/modules/civicrm/CRM/Core/BAO/CustomGroup.php).


code:
 if ($field['html_type'] == 'CheckBox' ||
            $field['html_type'] == 'AdvMulti-Select' ||
            $field['html_type'] == 'Multi-Select'
          ) {
            $value        = str_replace("|", ",", $value);
            $mulValues    = explode(',', $value);

[sonicthoughts]

According to CRM_Utils_Request Class Reference
Returns "mixed the value of the variable public" but explode(',', $value); expects a string.  the error seems to indicate a value is returned.

[sonicthoughts]

Note - i logged a bug:  CRM-12811 - Error parsing Custom Group from Form due to wrong type