The problem is that when the php error occurred, the variable of $value in line 792 (. At this stage, the PHP fatal error occurred. (Value of existent keys will never be null.) arraykeyexist is, frankly, slower that the isset version, so I skipped it in my examples.So that the 'radios other' element is hidden. view the webform and fill in some data to match the condition created at step 3. The isset() function is an inbuilt function in PHP which checks whether a variable is set and is not NULL.Create an email handler and set a condition for it to send an email when the 'radios other' element has a certain value'. For example, add another element and hide the 'radios other' element when the new element has a certain value. In the comment textarea field, we put the script between the tags.
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