Strange if statement

[Phil Latio]

if ($result)
$total = $result->RecordCount( );

Is this if statement purely looking for the prescence of the variable of
$result before executing?

Cheers

Phil

[Oli Filth]

Re: Strange if statement

Phil Latio wrote:[color=blue]
> if ($result)
> $total = $result->RecordCount( );
>
> Is this if statement purely looking for the prescence of the variable[/color]
of[color=blue]
> $result before executing?
>[/color]

No, it's checking whether the value of $result evaluates to boolean
TRUE.

See http://www.php.net/manual/types.comparisons.php

--
Oli

[dracolytch]

Re: Strange if statement

Basically it's making sure that $result is not the following values:

0
''
FALSE
(null)

Databases have a habit of returning FALSE or (null) when they encounter
an error. Essentially, this is a check to see if the query executed
properly.

~D

[Tim Roberts]

Re: Strange if statement

"Phil Latio" <phil.latio@f-in-stupid.co.uk> wrote:[color=blue]
>
>if ($result)
>$total = $result->RecordCount( );
>
>Is this if statement purely looking for the prescence of the variable of
>$result before executing?[/color]

Presence, maybe, or perhaps a "null" error result from some API.
--
- Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.