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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Depend on a PHP constant.
*
* @ingroup Language
*/
class ConstantDependency extends CacheDependency {
/** @var string */
private $name;
/** @var mixed */
private $value;
public function __construct( $name ) {
$this->name = $name;
$this->value = constant( $name );
}
/**
* @return bool
*/
public function isExpired() {
return constant( $this->name ) != $this->value;
}
}
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