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Wildhoney · 06-22-2008, 06:10 PM

I know of at least one instance where the #6 differs. Take the following as an example:

php Code:

$aValue = array();

if ($aValue == null)
{
    die('Ended within here');
}

die('Ended over here');

Juxtaposed with:

php Code:

$aValue = array();

if ($aValue == '')
{
    die('Ended within here');
}

die('Ended over here');

I surmise that's something to do with the fact that the array is null. It is not null to the variable because it holds a skeleton of an array, but the array, per se, is null.

When you attempt to validate it by specifying a string value, I.E: '', then you are attempting to classify it as a string, and as aforementioned, the variable is not null in that sense because it holds an array -- an empty, or null, array.

Am I right, or am I way off? Somebody please help.

06-22-2008, 06:10 PM	#4 (permalink)
Wildhoney La Vida es Sueño Join Date: Sep 2007 Location: Oldham Posts: 2,280 Thanks: 90	I know of at least one instance where the #6 differs. Take the following as an example: php Code: $aValue = array(); if ($aValue == null) { die('Ended within here'); } die('Ended over here'); Juxtaposed with: php Code: $aValue = array(); if ($aValue == '') { die('Ended within here'); } die('Ended over here'); I surmise that's something to do with the fact that the `array` is `null`. It is not `null` to the variable because it holds a skeleton of an array, but the array, per se, is `null`. When you attempt to validate it by specifying a string value, I.E: '', then you are attempting to classify it as a string, and as aforementioned, the variable is not `null` in that sense because it holds an `array` -- an `empty`, or `null`, `array`. Am I right, or am I way off? Somebody please help. __________________ The man who comes back through the Door in the Wall will never be quite the same as the man who went out.