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Posted by pgt on 11/01/07 09:16
"Jerry Stuckle" <jstucklex@attglobal.net> wrote in message
news:YZ-dndstE9gcrLTanZ2dnUVZ_qXinZ2d@comcast.com...
> pgt wrote:
>> "Rik Wasmus" <luiheidsgoeroe@hotmail.com> wrote in message
>> news:op.t0203pi85bnjuv@metallium.lan...
>> On Wed, 31 Oct 2007 23:01:45 +0100, pgt <pgtnot@gmail.not> wrote:
>>
>>> I have a working couple of pages (form submits 2 variables to the second
>>> page using GET).
>>>
>>> page1 has two dropdowns (generated from MySQL db).
>>>
>>> page2 retrieves info from the database accordingly, depending on the
>>> passed
>>> variables. Works fine.
>>>
>>>
>>> I need to ensure that the user has actually selected both variables on
>>> page1
>>> from each of the drop down options on page1.
>>>
>>> empty() seems unable to do this because the default drop down options
>>> are
>>> "Select one", "Select the other".
>>>
>>> so on page2, if the user has NOT made any choices:
>>>
>>> echo "Values passed to GET method:<br />\n";
>>> reset ($_GET);
>>> while (list ($key, $val) = each ($_GET)) {
>>> echo "$key => $val<br />\n";
>>> }
>>>
>>> gives me:
>>> Select one
>>> Select the other
>>>
>>>
>>> I can not see how to use empty() or isset() to resolve this, so...
>>>
>>> Any ideas how to ensure the user has selected something from both
>>> options
>>> (without javascript)?
>>>
>>> I couldn't find anything in the manual but assume I'm looking in all the
>>> wrong places for this.
>>
>>
>> Give the option a value 0 (well, it's more transparant/reliably checked
>> then for the string 'Select one', and check if(!isset($_GET['option1'])
>> ||
>> $_GET['option1'] = 0) echo 'Please select an option.';
>>
>>
>>
>>
>> Still missing something here then:
>>
>> page1
>> <select name="this">
>> <option value="0">Select one</option>
>> </select>
>> <select name="that">
>> <option value="0">Select the other</option>
>> </select>
>>
>>
>> page2
>> if (!isset($_GET['var1']) || $_GET['var1'] = "0")
>> { echo 'Go back and select the first choice.'; }
>>
>> if (!isset($_GET['var2']) || $_GET['var2'] = "0")
>> { echo 'Go back and select your second choice.'; }
>>
>>
>> What am I missing with this please?
>>
>> Thanks for any help.
>>
>>
> if (!isset($_GET['var1']) || $_GET['var1'] == "0")
> { echo 'Go back and select the first choice.'; }
>
> if (!isset($_GET['var2']) || $_GET['var2'] == "0")
> { echo 'Go back and select your second choice.'; }
>
Arrh - Comparison operator :-)
Thanks very much all.
It's appreciated.
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