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<?php |
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/** |
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* |
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* |
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* Created on Oct 22, 2006 |
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* |
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* Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com" |
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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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* API Serialized PHP output formatter |
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* @ingroup API |
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*/ |
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class ApiFormatPhp extends ApiFormatBase { |
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public function getMimeType() { |
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return 'application/vnd.php.serialized'; |
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} |
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public function execute() { |
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$params = $this->extractRequestParams(); |
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switch ( $params['formatversion'] ) { |
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case 1: |
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$transforms = [ |
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'BC' => [], |
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'Types' => [], |
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'Strip' => 'all', |
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]; |
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break; |
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case 2: |
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case 'latest': |
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$transforms = [ |
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'Types' => [], |
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'Strip' => 'all', |
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]; |
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break; |
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default: |
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$this->dieUsage( __METHOD__ . ': Unknown value for \'formatversion\'', 'unknownformatversion' ); |
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} |
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$text = serialize( $this->getResult()->getResultData( null, $transforms ) ); |
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// Bug 66776: wfMangleFlashPolicy() is needed to avoid a nasty bug in |
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// Flash, but what it does isn't friendly for the API. There's nothing |
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// we can do here that isn't actively broken in some manner, so let's |
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// just be broken in a useful manner. |
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if ( $this->getConfig()->get( 'MangleFlashPolicy' ) && |
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in_array( 'wfOutputHandler', ob_list_handlers(), true ) && |
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preg_match( '/\<\s*cross-domain-policy(?=\s|\>)/i', $text ) |
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) { |
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$this->dieUsage( |
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'This response cannot be represented using format=php. ' . |
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'See https://phabricator.wikimedia.org/T68776', |
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'internalerror' |
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); |
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} |
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$this->printText( $text ); |
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} |
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public function getAllowedParams() { |
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$ret = parent::getAllowedParams() + [ |
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'formatversion' => [ |
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ApiBase::PARAM_TYPE => [ 1, 2, 'latest' ], |
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ApiBase::PARAM_DFLT => 1, |
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ApiBase::PARAM_HELP_MSG => 'apihelp-php-param-formatversion', |
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], |
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]; |
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return $ret; |
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} |
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} |
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wikimedia /
mediawiki
If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: