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All of a sudden, all my Mediawiki pages are blank. If I click the edit field, the content is still, there. Ive checked the sqlite file and it looks just fine. Ive turned on debugging output and get the following:
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match_all(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 881
Warning: Invalid argument supplied for foreach() in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 882
Warning: preg_replace(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 886
Warning: preg_match_all(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 881
Warning: Invalid argument supplied for foreach() in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 882
Warning: preg_replace(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 886
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match_all(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 881
Warning: Invalid argument supplied for foreach() in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 882
Warning: preg_replace(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 886
Warning: preg_match_all(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 881
Warning: Invalid argument supplied for foreach() in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 882
Warning: preg_replace(): Compilation failed: group name must start with a non-digit at offset 4 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 886
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Warning: preg_match(): Compilation failed: group name must start with a non-digit at offset 8 in /usr/share/webapps/mediawiki/includes/MagicWord.php on line 907
Are these errors most likely the cause of the issue? If so, how do I resolve it? And if not, anyone have any idea on what might be the problem?
592
MediaWiki stores important data in two places: Database. Pages and their contents, users and their preferences, metadata, search index, etc. File system.
Found the issue. Its described in this bug report. Its apparently fixed in the Mediawiki master. The released versions are not compatible with PCRE 8.34.
140
You have to change includes/MagicWord.php as shown here: here
Replace
$group = "(?P<{$i}_{$name}>" . preg_quote( $syn, '/' ) . ')';
With
$it = strtr( $i, '0123456789', 'abcdefghij' );
$group = "(?P<{$it}_{$name}>" . preg_quote( $syn, '/' ) . ')';
After Replacing this you have to purge all sites. This can be done on single pages with adding "?action=purge" to the url of the page or for all sites by running this in command line from the maintenance directory:
php purgeList.php --purge --all
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