Manual:FAQ

For more information about the above, please see Communication .

$wgFileExtensions[] = 'pdf';

$wgFileExtensions = array_merge( $wgFileExtensions, [ 'pdf', 'txt', 'mp3' ] );

$wgEnableParserCache  = false; // deprecated method
$wgParserCacheType  = CACHE_NONE;
$wgCachePages  = false;

$wgGroupPermissions['*']['edit'] = false;

$wgGroupPermissions['*']['read'] = false;

$wgGroupPermissions['*']['createaccount'] = false;

$wgDefaultUserOptions = [
        ...
	'hideminor' => 0,
        ...
]

 $wgDefaultUserOptions["hideminor"] = 1;

 $wgNamespacesToBeSearchedDefault = array(
     NS_MAIN => true,
     NS_CATEGORY => true,
 );

php userOptions.php --dry --nowarn hideminor --old 0 --new 1

$wgLogo = "{$wgUploadPath}/6/62/mylogo.png";

$wgLogo = "{$wgScriptPath}/mylogo.jpg";

#column-content { margin: 0 0 .6em 0; }
#content { margin: 2.8em 0 0 0; }
#p-logo, .generated-sidebar, #p-lang, #p-tb, #p-search { display:none; }
#p-cactions { left: .1em; }

document.onkeydown = function( e ) {
	if( e == null ) e = event
	if( testKey( e, 122 ) ) { //F11
		appendCSS('#column-content {margin: 0 0 .6em 0;} #content {margin: 2.8em 0 0 0;} #p-logo, .generated-sidebar, #p-lang, #p-tb, #p-search {display:none;} #p-cactions {left: .1em;} #footer {display:none;}');
		return false;
	}
}

function testKey( e, intKeyCode ) {
	if( window.createPopup )
		return e.keyCode == intKeyCode
	else
		return e.which == intKeyCode
}

.catlinks { display: none; }

#p-logo {
	z-index: 3;
	position: absolute; /*needed to use z-index */
	top: 0;
	left: 0;
	height: 155px;
	width: 12em;
	overflow: visible;
}

#p-logo a,
#p-logo a:hover {
	display: block;
	height: 200px;
	width: 12.2em;
	background-repeat: no-repeat;
	background-position: 35% 50% !important;
	text-decoration: none;
}

/* Change the main page url used in things like the logo to an absolute url */
$wgHooks['SkinTemplateOutputPageBeforeExec'][] = 'lfChangeMainPageURL';
function lfChangeMainPageURL( $sk, &$tpl ) {
	$tpl->data['nav_urls']['mainpage']['href'] = "http://www.your-desired-url.com/"; // Point the main page url to an absolute url
	return true;
}

/* Change the main page url used in things like the logo to a url of another page on the wiki */
$wgHooks['SkinTemplateOutputPageBeforeExec'][] = 'lfChangeMainPageURL';
function lfChangeMainPageURL( $sk, &$tpl ) {
	$tpl->data['nav_urls']['mainpage']['href'] = Title::newFromText('ThePage')->getLocalURL(); // Point the main page url to a wiki page's url
	return true;
}

body.page-Main_Page.action-view h1.firstHeading, body.page-Main_Page.action-submit h1.firstHeading { display: none; }

<body class="mediawiki ltr sitedir-ltr ns-4 ns-subject page-uikipedi_as_ralju skin-vector action-view">

body.page-uikipedi_as_ralju.action-view h1.firstHeading, body.page-uikipedi_as_ralju.action-submit h1.firstHeading { display: none; }

body.page-Help_Main_Page.action-view h1.firstHeading, body.page-Help_Main_Page.action-submit h1.firstHeading { display: none; }

.toc, #toc { display: none; }

$wgLanguageCode = "fr";

php userOptions.php language --old en --new fr

li#ca-edit { display: none; }

<?php
if( !defined( 'MEDIAWIKI' ) ){
	die( "This is not a valid access point.\n" );
}

$wgHooks['SkinTemplateNavigation'][] = 'replaceTabs';
function replaceTabs( &$skin, &$links) {  
	// Remove the talk action
	unset( $links['namespaces']['talk'] );
	$maintitle = Title::newFromText( wfMessage( 'mainpage' )->inContentLanguage()->text() );
	// Add an additional link
	$links['namespaces']['main'] = array(
		'class' => false, // false or 'selected', defines whether the tab should be highlighted
		'text' => wfMessage( 'sitetitle' )->text(), // what the tab says
		'href' => $maintitle->getFullURL(), // where it links to
		'context' => 'main',
	);
	return true;
}

require_once("extensions/AR-Tabs.php");

body.page-Main_Page li#ca-talk { display: none !important; }

#ca-talk { display:none!important; }

#p-personal #pt-anonuserpage {
    display: none;
}

$wgHooks['PersonalUrls'][] = 'lfRemoveAnonUserpageLink';
function lfRemoveAnonUserpageLink( &$personal_urls, $title ) {
	unset( $personal_urls['anonuserpage'] );
	return true;
}

$wgHooks['PersonalUrls'][] = 'lfRemoveLoginLink';
function lfRemoveLoginLink( &$personal_urls, $title ) {
	unset( $personal_urls['login'] );
	unset( $personal_urls['anonlogin'] );
	unset( $personal_urls['createaccount'] );
	return true;
}

# Lock down the site (disable MediaWiki commands)

RewriteEngine On

#RewriteLog /tmp/rewrite.log

#RewriteLogLevel 9

## See https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Parameters_to_index.php#Actions

RewriteCond %{QUERY_STRING} (.*action=.*)
RewriteRule .* http://www.my.domain.com?

RewriteCond %{REQUEST_URI} !^/index.php/Special:Search
RewriteCond %{REQUEST_URI}  ^(.*Special:.*)
RewriteRule .* http://www.my.domain.com?

## Catch a trick...
RewriteCond %{QUERY_STRING} ^(.*Special:.*)
RewriteRule .* http://www.my.domain.com?

#footer-poweredbyico { display: none; }

unset( $wgFooterIcons['poweredby'] );

svn co <nowiki>http://svn.example.com/myproject/</nowiki>

#content a.external.text:after,
#content a.external.autonumber:after {
	content: none;
}

#content a.external {
    text-decoration: underline !important;
}

sed '/Importing/!s/\ [A-Z]\w*[a-z]\w*[A-Z]\w*[a-zA-Z]/\ \[\[&\]\] /g'
    ImportStage1.txt > ImportStage2.txt

sed 's/upload\:\w*\.\w*/http\:\/\/aberwiki\.org\/uploads\/& /g'
    ImportStage2.txt > ImportStage3.txt

mysql -u<mysqluser> -p<yourpass> <db name> < ImportStage3.txt

 -s, --sect=n     the root category section of the wiki of the imported article (mandatory)
 -1, --header     include standard header (category hierarchy path & notice)
 -l, --link       link to actual file on the web site
 -f, --footer     include standard footer (article category)
 -R, --res[=p]    add restricted tag in the footer as
                    '{{<Res Param|Root Category> Restricted}}' (default=`$_opt_sect')

 -p, --php=fn     mediawiki import php script specification
 -r, --root=n     the root category name for the whole wiki site
 -m, --max=n      max_allowed_packet for mysqld to import
 -u, --user=n     wiki user used for the import
 -a, --arch=p     the root url that linked-to archive files based on

 echo ./path/to/file.ext | wiki_import.sh -1 -l -f -s 'Customer Support' -R 

$out->addMeta ( 'description', 'This is a meta description.' );

UPDATE revision SET rev_user = 0 WHERE rev_user = <current_user_id>

UPDATE archive SET ar_user = 0 WHERE ar_user = <current_user_id>

$wgSpamRegexLines[] = 'display\s*:\s*none';
$wgSpamRegexLines[] = 'overflow\s*:\s*auto';
[...]
$wgSpamRegex = '/(' . implode( '|', $wgSpamRegexLines ) . ')/i';

_{Immediate help}
mediawiki-l, the MediaWiki mailing list. #mediawiki - the IRC channel. Support desk For more information about the above, please see Communication .

Manual:FAQ

The basics

What are the differences between MediaWiki, Wikimedia, Wikipedia and wiki?

I want to use a MediaWiki instance to (blank). Am I allowed to?

Installation and configuration

Where do I download MediaWiki?

How to install MediaWiki?

How do I install MediaWiki using a package?

Can I install more than one wiki on a server using MediaWiki?

How do I install an existing wiki, like Wikipedia or Wiktionary?

Does MediaWiki require shell access?

How do I install extensions?

How do I add extra namespaces?

How do I enable uploading?

How do I allow uploading of additional formats?

How do I enable embedded math formulas?

How do I set the timezone for my MediaWiki?

How do I purge a cached page?

How do I completely disable caching?

"File is corrupt or has an invalid extension"

Initial user was not created by installer or it is not an administrator

maintenance/createAndPromote.php

Alter the database

Temporarily let everyone assign rights to promote your initial user

How do I reset a user's MediaWiki password?

How can I create interwiki links in my wiki?

How do I make my base URLs shorter?

How do I organize pages into subdirectories like /wiki/subdir/PageName?

Is downloading and using all of MediaWiki.org free?

How do I administrate/manage user rights?

How do I stop anonymous users from editing any page?

How do I stop anonymous users from reading any page?

How do I restrict account creation?

How do I require an email address be specified at registration?

How do I put MediaWiki into Read Only mode?

How do I change default user preferences?

How can I make MediaWiki run faster?

How do I enable a drop-down list of search suggestions?

Upgrading

Moving

Is it possible to move my wiki to a different machine?

How do I move my wiki to a different server?

Changing the interface

How do I change the logo?

How do I edit the wiki's CSS?

How do I hide the left vertical navigation toolbar?

How do I hide the categories at the bottom of each page?

Can I customize the logo in the top left corner? If so, how?

Reducing the size of the logo

How do I customize the link-URL of the site-logo in the top left corner of all pages that activates when the site-logo is clicked upon?

How do I change the icon in the browser's address line (favicon)?

Rewrite Rule

Case sensitivity

How do I customize the navigation bar?

How do I put a text message (sitenotice) on every page?

How do I change which page is the main page?

How do I change the Main Page title?

How do I hide the main page title?

How can I hide the table of contents?

How do I change the interface text?

How do I change the interface language?

How do I remove the article/edit etc tabs?

How do I add/remove tabs throughout my wiki?

How do I remove a tab on only one page?

How do I remove a tab on all pages

How do I remove the "Talk for this IP" link at the top right (e.g. when $wgDisableAnonTalk is true)?

How do I remove the "Create an Account or Login" link at the top right of the screen?

How can I suppress actions and special pages?

How do I edit error messages?

How do I change the footer?

How can I edit / remove the Powered by MediaWiki image (and possible other images) from the footer?

How do I add a reply link to default signature tildes (~~~~) template?

How can I change what the <title> of each page is? Where do I make changes?

Does MediaWiki automatically capitalize the first letter of $wgSitename?

How do I make external links open in a new window?

How can I suppress MediaWiki from formatting URLs, tags, etc?

How can I force users to preview before they save?

How do I add more buttons on the edit page?

How can I get more special characters or tags clickable on the edit page?

How can I use a different skin (e.g. Wikipedia's old Monobook skin) on my wiki?