Daniel Brown wrote:
> On Jan 4, 2008 12:28 PM, afan pasalic <afan@xxxxxxxx> wrote:
>> Daniel Brown wrote:
>>> On Jan 4, 2008 12:06 PM, afan pasalic <afan@xxxxxxxx> wrote:
>>>> hi
>>>> I have function
>>>> function get_content($client_id, $form_id, $index1)
>>>> {
>>>> $query = mysql_query("
>>>> SELECT content
>>>> FROM infos
>>>> WHERE client_id=".$client_id." AND form_id=".$form_id." AND
>>>> index1='".$index1."'");
>>>> if (mysql_num_rows($query) > 0)
>>>> {
>>>> $result = mysql_fetch_assoc($query);
>>>> return $result['content'];
>>>> }
>>>> else
>>>> {
>>>> get_content(0, 0, $index1); // get default value
>>>> }
>>>> }
>>>>
>>>> When I call it
>>>> $CONTENT = get_content(12, 104, 'merchant');
>>>> echo $CONTENT; // empty, nothing
>>>>
>>>> But if I use global in the function
>>>>
>>>> function get_content($client_id, $form_id, $index1)
>>>> {
>>>> global $CONTENT;
>>>> $query = mysql_query("
>>>> SELECT content
>>>> FROM infos
>>>> WHERE client_id=".$client_id." AND form_id=".$form_id." AND
>>>> index1='".$index1."'");
>>>> if (mysql_num_rows($query) > 0)
>>>> {
>>>> $result = mysql_fetch_assoc($query);
>>>> $CONTENT = $result['content'];
>>>> }
>>>> else
>>>> {
>>>> get_content(0, 0, $index1);
>>>> }
>>>> }
>>>>
>>>>
>>>> get_content(12, 104, 'merchant');
>>>> echo $CONTENT; # Shows correct.
>>>>
>>>> What's wrong with first solution?
>>>>
>>>> Thanks for any help.
>>> Functions only use variables within their own scope, unless
>>> explicitly told to consider a variable as a global (or if the variable
>>> is a SUPERGLOBAL).
>>>
>> not quite sure I understand?!?
>> :(
>>
>>
>
> The fundamentals of PHP (and general programming): working with globals.
>
> Specifically for PHP, some required reading:
>
> http://us.php.net/global
>
>
I think you didn't understand my question: I know why the function work
in 2nd example. My question was why I'm not getting the result in 1st
example? What am I doing wrong. And, as far as I know, I think it
doesn't have anything with GLOBALS (register_globals are anyway turned off).
thanks
-afan
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