false

[Tandem]

if i set a variable to false like this:

[code]$blah = false;[/code]

Does that effectively 'empty' the variable? Or does it literraly make it "false"? Or something else?

[livepjam]

I believe it would truly make it a boolean, i.e. false.

[newb]

whats a boolean

[tleisher]

A boolean is a true/false test, it always returns True or false, nothing more.

[livepjam]

Eh, I'm not sure now...

I tried the following code and it output the text:

[code]<?php

$blah = false;

if (empty($blah))
echo "It is empty";

?>[/code]

I guess that would mean the variable is empty.

[Tandem]

I just tried:

[code]$blah = false;

echo "$blah";[/code]

and got no output, so yeah i guess it must be empty.

[livepjam]

It is empty, but it still holds the value false.

[code]<?php

$blah = false;

if ($blah == false)
echo "It is empty";

?>[/code]

If you do that, it outputs the echo.

[Tandem]

Ok cool, thanks for the replies.