_Added in 1.8.10_

*$false*

Returns $false, mainly used for [[/if]], [[/while]] expressions.

*Example*

<pre>
if ($true) {
  echo -ag expression was true
}

if (!$true) {
  echo -ag expression was false
}

if ($false) {
  echo -ag expression was false
}

if (!$false) {
  echo -ag expression was true
}
</pre>