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-   -   Check if datastore entry exists? (https://vborg.vbsupport.ru/showthread.php?t=318720)

JamesAB 05-19-2015 04:25 PM
Check if datastore entry exists?
 
I thought I saw the answer to this yesterday while searching the forums, but now I can't find the post. Now I can't fine the post.

What is the best way to test if a datastore entry exists before trying to use the data that is supposed to be there?

Thanks,
James

--------------- Added [DATE]1432064018[/DATE] at [TIME]1432064018[/TIME] ---------------

I think I found it.
Does this look right?

Code:
if ($vbulletin->datastore_item !== null)

kh99 05-19-2015 06:15 PM
Man, I just read that whole section on NULL vs isset() vs empty() a few weeks ago and I already can't remember. I think what you have is right because IIRC I don't think there's any practical difference between a variable set to NULL and an unset variable.

JamesAB 05-19-2015 09:16 PM
I got that code bit from the first post in this thread:
https://vborg.vbsupport.ru/showthread.php?t=98047

kh99 05-19-2015 09:35 PM
Hmm...I guess at some point it used to be separate from $vbulletin (or $vbulletin didn't exist yet), but I wonder why they changed from isset() to !== NULL? Anyway, I guess that'll work.


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