Curt Zirzow wrote:
* Thus wrote K.Bogac Bokeer ([EMAIL PROTECTED]):
When $var is 0?
or
$var = '';
$var = array();
$var = false;
// Output: $var: $var not exists
if ( $var )
echo '$var: $var exists';
else
Curt
or null
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paperCrane
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T
* Thus wrote K.Bogac Bokeer ([EMAIL PROTECTED]):
> When $var is 0?
>
>$var = 0;
or
$var = '';
$var = array();
$var = false;
>
> // Output: $var: $var not exists
> if ( $var )
> echo '$var: $var exists';
> else
Curt
--
"I used to think I was indecisive, but now I'm not so
When $var is 0?
// Output: $var: $var not exists
if ( $var )
echo '$var: $var exists';
else
echo '$var: $var not exists';
// Output: isset(): var exists
if ( isset($var) )
echo 'isset(): $var exists';
else
echo 'isset(): $var not exists';
?>
Larry E . Ullman wrote:
if($
if($var) do something;
verses
if(isset($var)) do something;
The simple form if($var) seems to work fine and I see it in code often.
Is there a good reason for using isset?
Yes, if you don't use isset(), you may see notices (errors) if the
variable is not set. This depends upon the error reporting
if($var) do something;
verses
if(isset($var)) do something;
The simple form if($var) seems to work fine and I see it in code often.
Is there a good reason for using isset?
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