includes/installer/PhpBugTests.php

   1 <?php
   2 /**
   3  * Classes for self-contained tests for known bugs in PHP.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Test for PHP+libxml2 bug which breaks XML input subtly with certain versions.
  26  * Known fixed with PHP 5.2.9 + libxml2-2.7.3
  27  * @see http://bugs.php.net/bug.php?id=45996
  28  */
  29 class PhpXmlBugTester {
  30         private $parsedData = '';
  31         public $ok = false;
  32         public function __construct() {
  33                 $charData = '<b>c</b>';
  34                 $xml = '<a>' . htmlspecialchars( $charData ) . '</a>';
  35
  36                 $parser = xml_parser_create();
  37                 xml_set_character_data_handler( $parser, array( $this, 'chardata' ) );
  38                 $parsedOk = xml_parse( $parser, $xml, true );
  39                 $this->ok = $parsedOk && ( $this->parsedData == $charData );
  40         }
  41         public function chardata( $parser, $data ) {
  42                 $this->parsedData .= $data;
  43         }
  44 }
  45
  46 /**
  47  * Test for PHP bug #50394 (PHP 5.3.x conversion to null only, not 5.2.x)
  48  * @see http://bugs.php.net/bug.php?id=45996
  49  */
  50 class PhpRefCallBugTester {
  51         public $ok = false;
  52
  53         function __call( $name, $args ) {
  54                 $old = error_reporting( E_ALL & ~E_WARNING );
  55                 call_user_func_array( array( $this, 'checkForBrokenRef' ), $args );
  56                 error_reporting( $old );
  57         }
  58
  59         function checkForBrokenRef( &$var ) {
  60                 if ( $var ) {
  61                         $this->ok = true;
  62                 }
  63         }
  64
  65         function execute() {
  66                 $var = true;
  67                 call_user_func_array( array( $this, 'foo' ), array( &$var ) );
  68         }
  69 }