On Tue, Mar 13, 2012 at 4:59 PM, Tedd Sperling <tedd.sperling@xxxxxxxxx> wrote:
> On Mar 12, 2012, at 7:12 PM, Tim Streater wrote:
>> <?php
>>
>> function yes ($a)
>> {
>> global $x;
>> if ($a) $x = "yes\n";
>> }
>>
>> first (true);
>>
>> echo $x;
>>
>> ?>
>>
>>
>> but I haven't looked into $GLOBALS enough to know whether using them instead would have saved my bacon.
>
> I'm not sure what would have saved bacon in the above case. I don't see how your example would work. I think it contained a typo.
>
> In what I think you were trying to demonstrate, I would just pass $x by reference (&$x) -- or -- return $x by value. I would not have used a global,
>
> In any event, I seldom use globals anyway. This was more an academic discussion.
>
> Cheers,
>
> tedd
>
I would indeed mark it as bad practice using them. I only use them for
debugging purposes. When developing something, you might end up
needing some global variable temporary, and you don't want to pass it
through a few dozen functions before reaching the one where you need
it.
- Matijn
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