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<?php |
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/** |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* http://www.gnu.org/copyleft/gpl.html |
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* |
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* @file |
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*/ |
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/** |
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* Show an error page on a badtitle. |
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* |
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* Uses BadRequestError to emit a 400 HTTP error code to ensure caching proxies and |
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* mobile browsers know not to cache it as valid content. (T35646) |
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* |
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* @since 1.19 |
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* @ingroup Exception |
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*/ |
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class BadTitleError extends BadRequestError { |
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/** |
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* @param string|Message|MalformedTitleException $msg A message key (default: 'badtitletext'), or |
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* a MalformedTitleException to figure out things from |
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* @param array $params Parameter to wfMessage() |
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*/ |
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public function __construct( $msg = 'badtitletext', $params = [] ) { |
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if ( $msg instanceof MalformedTitleException ) { |
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$errorMessage = $msg->getErrorMessage(); |
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if ( !$errorMessage ) { |
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parent::__construct( 'badtitle', 'badtitletext', [] ); |
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} else { |
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$errorMessageParams = $msg->getErrorMessageParameters(); |
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parent::__construct( 'badtitle', $errorMessage, $errorMessageParams ); |
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} |
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} else { |
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parent::__construct( 'badtitle', $msg, $params ); |
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} |
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} |
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} |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: