PHP boolean's

Can anyone confirm if in PHP 0 = FALSE and anything else if TRUE?

Or is it more 0 = FALSE and 1 = TRUE?

One of the reasons I ask is that if I do;

//$count is an incrementing value starting from 0 in a loop
if($count % 2)
{
//do something
}

This works fine, but if I do:
if(!$count % 2)
{
//do something
}

It doesn't work. Should it not just be a boolean comparison? Why do I
need to do this to get my FALSE?

if($count % 2 === 0)
{

}
.

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