Re: [PHP] How to check for a $_GET without throwing a Notice?

[Daniel Clark]

if (isset( $_GET['id']))

>>How do I check for the presence of an optional $_GET param without 
>>throwing a "Notice: Undefined index" when the param is not present?
>>
>>Tried all three of these, they all produce the Notice when the param is 
>>not passed:
>>
>>if ($_GET['id'])
>>if ($_GET['id'] != "")
>>if (isset $_GET['id'])
>>
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