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Date: Tue, 31 Aug 1999 11:14:49 -0500
To: schlicht <email protected>
From: Richard Lynch email protected>>
Subject: Re: Re: [PHP3] Something like "isNull" in PHP3???
In-Reply-To: <412567DE.004038F5.00 <email protected>>
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Hopefully you posted this to the mailling list, since I know nothing of
Oracle.
At 12:41 PM 8/31/99 +0100, you wrote:
>
>
>Hi,
>thank you for your answer. I'm using ORACLE 7 and I wanna know how to find
out
>if the returned value is NULL or '' (empty string) because NULL is
different to
>'' (empty string)!
>
>Heiko
>
>
>
>
>Richard Lynch email protected>> am 30.08.99 21:24:07
>
>An: Heiko Schlichting/GEHAG DSK GmbH, php3 <email protected>
>Kopie:
>
>Thema: Re: [PHP3] Something like "isNull" in PHP3???
>
>
>
>
>There is no value NULL in PHP, so there is no way to check for such a value.
>NULL values coming from a database are represented in a variety of fairly
>obvious ways, but you'll have to tell us which database.
>Here are the things that *DO* have meaning in PHP.
>
>...
>
>
>imho, beginners should turn error_reporting up to E_ALL (15) in php3.ini so
>they catch mistakes such as the last 2 lines.
>
>At 01:55 PM 8/30/99 +0100, you wrote:
>>
>>
>>Hi,
>>i wonder if there is a way to find out if a variable is empty (that means
>"") or
>>NULL. In ASP you have a funktion called isNull. What about PHP? The
>>"empty"-Funktion does not solve this problem.
>>
>>Greetings, Heiko
>>
>>
>>
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