查看“如何启用扩展”的源代码

*以启用Math扩展为例，主要参考 [http://www.mediawiki.org/wiki/Extension:Math]

#下载Math的扩展到[http://www.mediawiki.org/wiki/Special:ExtensionDistributor/Math] extension目录下
*更改Localsettings.php,增加一行

 require_once "$IP/extensions/Math/Math.php";
#更新wiki程序，在mantiance目录下执行，或者执行http://example.org/w/mw-config/
 $ php update.php
#选择一个math的生成方法，以MathJax为例
 
<!--T:18-->
;Settings (Math 1.1 // MW 1.19 - 1.22)
</translate>

<syntaxhighlight lang="php" enclose="div" style="overflow:auto;">
$wgUseMathJax = true; // enabeling MathJax as rendering option
$wgDefaultUserOptions['math'] = MW_MATH_MATHJAX; // setting MathJax as default rendering option (optional)
/**
* The default parser for MathJax is 'http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML'
* If you don't want to or can't use the default and your run your own locally
* replace the below url with something like:
* $wgMathJaxUrl = '/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML';
*/
$wgMathJaxUrl = 'http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML';
</syntaxhighlight>
<translate>
<!--T:19-->
;Settings (Math 1.2 // MW 1.23+)
</translate>

<syntaxhighlight lang="php" enclose="div" style="overflow:auto;">
$wgUseMathJax = true; // enabeling MathJax as rendering option
$wgDefaultUserOptions['mathJax'] = true; // setting MathJax as default rendering option (optional)
$wgMathDisableTexFilter = true; // or compile "texvccheck"
</syntaxhighlight>
<translate>
<!--T:20-->
See also [[<tvar|ext-MathJaxMenu>Special:MyLanguage/Extension:Math/MathJaxMenu</>|How to modify the MathJax contextual menu.]]