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<?php
/**
* Copyright 2014
*
* 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
*/
namespace MediaWiki\Config;
/**
* Accesses configuration settings from $GLOBALS
*
* @newable
* @since 1.23
*/
class GlobalVarConfig implements Config {
/**
* Prefix to use for configuration variables
* @var string
*/
private $prefix;
/**
* Default builder function
* @return self
*/
public static function newInstance() {
return new self();
}
/**
* @stable to call
*
* @param string $prefix
*/
public function __construct( $prefix = 'wg' ) {
$this->prefix = $prefix;
}
/**
* @inheritDoc
*/
public function get( $name ) {
if ( !$this->has( $name ) ) {
throw new ConfigException( __METHOD__ . ": undefined option: '$name'" );
}
return $GLOBALS[$this->prefix . $name];
}
/**
* @inheritDoc
*/
public function has( $name ) {
$var = $this->prefix . $name;
// (T317951) Don't call array_key_exists unless we have to, as it's slow
// on PHP 8.1+ for $GLOBALS. When the key is set but is explicitly set
// to null, we still need to fall back to array_key_exists, but that's
// rarer.
return isset( $GLOBALS[$var] ) || array_key_exists( $var, $GLOBALS );
}
}
/** @deprecated class alias since 1.41 */
class_alias( GlobalVarConfig::class, 'GlobalVarConfig' );
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