Title: Invalid Argument in Collapscat.PHP
Last modified: August 21, 2016

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# Invalid Argument in Collapscat.PHP

 *  [cryogenn](https://wordpress.org/support/users/cryogenn/)
 * (@cryogenn)
 * [12 years, 10 months ago](https://wordpress.org/support/topic/invalid-argument-in-collapscatphp/)
 * Hi, I installed and activated the plugin and then immediately received the below
   error in my PHP error log. Any suggestions on how to fix or resolve would be 
   great, or if I have to wait for a plugin upgrade.
 * PHP Warning: Invalid argument supplied for foreach() in /xxxxx/xxxxxx/xxxxxx/
   wp-content/plugins/collapsing-categories/collapscat.php on line 107
 * Thanks.
 * [http://wordpress.org/plugins/collapsing-categories/](http://wordpress.org/plugins/collapsing-categories/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [cryogenn](https://wordpress.org/support/users/cryogenn/)
 * (@cryogenn)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/invalid-argument-in-collapscatphp/#post-4087043)
 * Similar error here on WordPress 3.6.1
 *  [3dolab](https://wordpress.org/support/users/3dolab/)
 * (@3dolab)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/invalid-argument-in-collapscatphp/#post-4087058)
 * just put
    `if(!empty($widget_options))` at line 107 in collapscat.php
 *  Thread Starter [cryogenn](https://wordpress.org/support/users/cryogenn/)
 * (@cryogenn)
 * [12 years, 8 months ago](https://wordpress.org/support/topic/invalid-argument-in-collapscatphp/#post-4087059)
 * Thanks 3dolab, I was able to find another plugin but hopefully it helps someone
   else.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Invalid Argument in Collapscat.PHP’ is closed to new replies.

 * ![](https://ps.w.org/collapsing-categories/assets/icon-256x256.gif?rev=2886482)
 * [Collapsing Categories](https://wordpress.org/plugins/collapsing-categories/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/collapsing-categories/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/collapsing-categories/)
 * [Active Topics](https://wordpress.org/support/plugin/collapsing-categories/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/collapsing-categories/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/collapsing-categories/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [cryogenn](https://wordpress.org/support/users/cryogenn/)
 * Last activity: [12 years, 8 months ago](https://wordpress.org/support/topic/invalid-argument-in-collapscatphp/#post-4087059)
 * Status: not resolved