https://legacy.forums.gravityhelp.com/topic/custom-field-of-checkbox-type-errors-out-upon-submittal Gravity Support Forums Topic: custom field of checkbox type errors out upon submittal en-US Sat, 04 Apr 2026 18:21:42 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/custom-field-of-checkbox-type-errors-out-upon-submittal#post-41644 Sat, 19 Nov 2011 13:25:16 +0000 antonv 41644@https://legacy.forums.gravityhelp.com/ <p>I have a form with multiple page breaks that creates a post and one of the Custom fields is of Checkbox type. When moving from the page containing the checkbox custom filed I get this message:<br /> Warning: hash_hmac() expects parameter 2 to be string, array given in /xxx/xxx/xxx/xxx/xxx/wp-includes/pluggable.php on line 1465</p> <p>And when I submit, I get this error:<br /> Warning: Invalid argument supplied for foreach() in /xxx/xxx/xxx/xxx/xxx/wp-content/plugins/gravityforms/common.php on line 3654</p> <p>Now in the dashboard when viewing the post, the custom fields are added but their value is "Array" and their number seems to be random, meaning if I have checked 4 boxes in the form, in the post are added just 2 or 1 or other random number less than the 4 that they should be.</p> <p>If you need I can give you user access to this wordpress site.</p> <p>Thank you,<br /> Anton </p>