CODEWITHSUNDEEP
phpmediawiki
ardevd
ardevd

Reputation: 3407

All my MediaWiki pages are blank

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?

Upvotes: 19

Views: 12087

Answers (3)

delimiter
delimiter

Reputation: 1489

I had the same symptoms after upgrading from Trusty to Xenial (Ubuntu), but it was not a PCRE issue. in my case it was resolved by disabling the Widgets extension, which I did by commenting out this line in the LocalSettings.php ...

require_once("$IP/extensions/Widgets/Widgets.php");

I have the v1.0 of Widgets on v1.28.0 of Mediawiki.

Upvotes: 0

blacksunshineCoding
blacksunshineCoding

Reputation: 746

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

Upvotes: 9

ardevd
ardevd

Reputation: 3407

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.

Upvotes: 17

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