src/Cleaner.php
public function getBool($variable, $default = false)
    {
        return (bool) $this->get($variable, $default, array(false, true), false);
    }
public function getBool($variable, $default = false)
    {
        return (bool) $this->get($variable, $default, array(false, true), false);
    }
public function getBool ( $ variable , $ default = false ) { return ( bool ) $ this -> get ( $ variable , $ default , array ( false , true ) , false ) ; }
Same as _get but casts return value to bollean

@access public
@param mixed $variable - variable
@return bool
Same as _get but casts return value to bollean