[ciapug] Form submission

[Lathrop Preston]

Tim Perdue wrote:

> Jerry Weida wrote:
> 
>> This generally occurs when the submit button is not of the type
>> submit.  You can either change that to a submit type or your can write
>> some javascript.
>> can't remember how to get the keycode into the fuction, but I'm sure
>> you can find that out somewhere online pretty easy, or maybe someone
>> here on the list would know.
>> some pseudo-code
>>
>> <input type="button" onChange="javascript:submitform()" />
>>
>> function submitform() {
>>   if btn=chr(13)   # see if we hit the enter key
>>     document.forms[0].submit()
>> }
> 
> 
> I've had this happen when I do use the type="submit", and on the 
> receiving end, my php is looking for "if ($submit) {"
> 
> Since submit was never pressed, the if statement doesn't work out to true.
> 
> So you can get around it by having an <input type="hidden" name="foo" 
> value="1"> and then on the receiving end you do "if ($foo) "
> 
> And it works out to true whether they hit submit button or not.

for that matter you don't even need a special field.

just use
if ( is_set($_POST['somefield']) )

as long as the page was the result of a post with 'somefield' as one of 
the fields it will work even if the user leaves the field blank because 
the variable is set (just as '')

Laith