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Documentation [f]" accesskey="f" id="searchInput"/> <button type="submit" class="button search main">Search</button> </div> </div> </form> </li> </ul> </section> </nav> </div> </div> <div id="page-content"> <div class="row"> <div class="large-12 columns">   <div class="mw-indicators mw-body-content"> </div>  </div> </div> <div id="mw-js-message" style="display:none;"></div> <div class="row"> <div id="p-cactions" class="large-12 columns"> <article id="content"> <h1 class="title">Glossary</h1> <h3 id="tagline">From Joomla! Documentation</h3> <h5 class="subtitle"></h5> <div id="ad"> <script async="" type="text/javascript" src="//cdn.carbonads.com/carbon.js?zoneid=1673&serve=C6AILKT&placement=joomlaorg" id="_carbonads_js"></script> </div> <div class="clear_both"></div> <div class="mw-bodytext"> <div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-parser-output"><div class="mw-parser-output"><div class="mw-pt-languages noprint" lang="en" dir="ltr"><div class="mw-pt-languages-label">Other languages:</div><div class="mw-pt-languages-list"><a href="/Glossary/id" class="mw-pt-progress mw-pt-progress--complete" title="Pustaka (100% translated)" lang="id">Bahasa Indonesia</a> • ‎<a href="/Glossary/de" class="mw-pt-progress mw-pt-progress--complete" title="Glossar (100% translated)" lang="de">Deutsch</a> • ‎<span class="mw-pt-languages-ui mw-pt-languages-selected mw-pt-progress mw-pt-progress--complete" lang="en">English</span> • ‎<a href="/Glossary/sw" class="mw-pt-progress mw-pt-progress--complete" title="Glossary (100% translated)" lang="sw">Kiswahili</a> • ‎<a href="/Glossary/nl" class="mw-pt-progress mw-pt-progress--complete" title="Woordenlijst (100% translated)" lang="nl">Nederlands</a> • ‎<a href="/Glossary/tr" class="mw-pt-progress mw-pt-progress--complete" title="Terimler Dizini (100% translated)" lang="tr">Türkçe</a> • ‎<a href="/Glossary/ca" class="mw-pt-progress mw-pt-progress--complete" title="Glosari (100% translated)" lang="ca">català</a> • ‎<a href="/Glossary/da" class="mw-pt-progress mw-pt-progress--complete" title="Glossser (100% translated)" lang="da">dansk</a> • ‎<a href="/Glossary/et" class="mw-pt-progress mw-pt-progress--complete" title="Sõnastik (100% translated)" lang="et">eesti</a> • ‎<a href="/Glossary/es" class="mw-pt-progress mw-pt-progress--complete" title="Glosario (100% translated)" lang="es">español</a> • ‎<a href="/Glossary/fr" class="mw-pt-progress mw-pt-progress--complete" title="Glossaire (100% translated)" lang="fr">français</a> • ‎<a href="/Glossary/hr" class="mw-pt-progress mw-pt-progress--complete" title="Rječnik (100% translated)" lang="hr">hrvatski</a> • ‎<a href="/Glossary/it" class="mw-pt-progress mw-pt-progress--complete" title="Glossario (100% translated)" lang="it">italiano</a> • ‎<a href="/Glossary/hu" class="mw-pt-progress mw-pt-progress--high" title="Szószedet (67% translated)" lang="hu">magyar</a> • ‎<a href="/Glossary/pt" class="mw-pt-progress mw-pt-progress--complete" title="Glossário (100% translated)" lang="pt">português</a> • ‎<a href="/Glossary/pt-br" class="mw-pt-progress mw-pt-progress--complete" title="Glossário (100% translated)" lang="pt-BR">português do Brasil</a> • ‎<a href="/Glossary/el" class="mw-pt-progress mw-pt-progress--high" title="Λεξιλόγιο (67% translated)" lang="el">Ελληνικά</a> • ‎<a href="/Glossary/ru" class="mw-pt-progress mw-pt-progress--complete" title="Глоссарий (100% translated)" lang="ru">русский</a> • ‎<a href="/Glossary/ar" class="mw-pt-progress mw-pt-progress--complete" title="المصطلحات (100% translated)" lang="ar">العربية</a> • ‎<a href="/Glossary/fa" class="mw-pt-progress mw-pt-progress--low" title="واژه‌نامه (33% translated)" lang="fa">فارسی</a> • ‎<a href="/Glossary/bn" class="mw-pt-progress mw-pt-progress--complete" title="শব্দকোষ (100% translated)" lang="bn">বাংলা</a> • ‎<a href="/Glossary/th" class="mw-pt-progress mw-pt-progress--complete" title="อภิธานศัพท์ (100% translated)" lang="th">ไทย</a> • ‎<a href="/Glossary/zh-cn" class="mw-pt-progress mw-pt-progress--complete" title="术语表 (100% translated)" lang="zh-Hans-CN">中文（中国大陆）‎</a> • ‎<a href="/Glossary/zh-tw" class="mw-pt-progress mw-pt-progress--complete" title="專業術語 (100% translated)" lang="zh-Hant-TW">中文（台灣）‎</a> • ‎<a href="/Glossary/ja" class="mw-pt-progress mw-pt-progress--complete" title="用語集 (100% translated)" lang="ja">日本語</a></div></div> <p>The Joomla! Glossary is helpful for learning common terms used in Joomla! tutorials, help screens and advanced documentation. </p><p><br /> </p> <div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"><input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none" /><div class="toctitle" lang="en" dir="ltr"><h2 id="mw-toc-heading">Contents</h2><span class="toctogglespan"><label class="toctogglelabel" for="toctogglecheckbox"></label></span></div> <ul> <li class="toclevel-1 tocsection-1"><a href="#Access_Control_List"><span class="tocnumber">1</span> <span class="toctext">Access Control List</span></a></li> <li class="toclevel-1 tocsection-2"><a href="#Alias"><span class="tocnumber">2</span> <span class="toctext">Alias</span></a></li> <li class="toclevel-1 tocsection-3"><a href="#Anchor"><span class="tocnumber">3</span> <span class="toctext">Anchor</span></a></li> <li class="toclevel-1 tocsection-4"><a href="#Article"><span class="tocnumber">4</span> <span class="toctext">Article</span></a></li> <li class="toclevel-1 tocsection-5"><a href="#Cascading_Style_Sheet_.28CSS.29"><span class="tocnumber">5</span> <span class="toctext">Cascading Style Sheet (CSS)</span></a></li> <li class="toclevel-1 tocsection-6"><a href="#Category"><span class="tocnumber">6</span> <span class="toctext">Category</span></a></li> <li class="toclevel-1 tocsection-7"><a href="#Chrome"><span class="tocnumber">7</span> <span class="toctext">Chrome</span></a></li> <li class="toclevel-1 tocsection-8"><a href="#Component"><span class="tocnumber">8</span> <span class="toctext">Component</span></a></li> <li class="toclevel-1 tocsection-9"><a href="#Core"><span class="tocnumber">9</span> <span class="toctext">Core</span></a></li> <li class="toclevel-1 tocsection-10"><a href="#Database_Table_Prefix"><span class="tocnumber">10</span> <span class="toctext">Database Table Prefix</span></a></li> <li class="toclevel-1 tocsection-11"><a href="#Extension"><span class="tocnumber">11</span> <span class="toctext">Extension</span></a></li> <li class="toclevel-1 tocsection-12"><a href="#LDAP"><span class="tocnumber">12</span> <span class="toctext">LDAP</span></a></li> <li class="toclevel-1 tocsection-13"><a href="#Language"><span class="tocnumber">13</span> <span class="toctext">Language</span></a></li> <li class="toclevel-1 tocsection-14"><a href="#Menu"><span class="tocnumber">14</span> <span class="toctext">Menu</span></a></li> <li class="toclevel-1 tocsection-15"><a href="#Model-View-Controller"><span class="tocnumber">15</span> <span class="toctext">Model-View-Controller</span></a></li> <li class="toclevel-1 tocsection-16"><a href="#Module"><span class="tocnumber">16</span> <span class="toctext">Module</span></a></li> <li class="toclevel-1 tocsection-17"><a href="#Module_Class_Suffix"><span class="tocnumber">17</span> <span class="toctext">Module Class Suffix</span></a></li> <li class="toclevel-1 tocsection-18"><a href="#Module_Position"><span class="tocnumber">18</span> <span class="toctext">Module Position</span></a></li> <li class="toclevel-1 tocsection-19"><a href="#Module_chrome"><span class="tocnumber">19</span> <span class="toctext">Module chrome</span></a></li> <li class="toclevel-1 tocsection-20"><a href="#PHP"><span class="tocnumber">20</span> <span class="toctext">PHP</span></a></li> <li class="toclevel-1 tocsection-21"><a href="#Page_Class_Suffix"><span class="tocnumber">21</span> <span class="toctext">Page Class Suffix</span></a></li> <li class="toclevel-1 tocsection-22"><a href="#Patch"><span class="tocnumber">22</span> <span class="toctext">Patch</span></a></li> <li class="toclevel-1 tocsection-23"><a href="#Plugin"><span class="tocnumber">23</span> <span class="toctext">Plugin</span></a></li> <li class="toclevel-1 tocsection-24"><a href="#Search_Engine_Friendly_URLs"><span class="tocnumber">24</span> <span class="toctext">Search Engine Friendly URLs</span></a></li> <li class="toclevel-1 tocsection-25"><a href="#Split_menus"><span class="tocnumber">25</span> <span class="toctext">Split menus</span></a></li> <li class="toclevel-1 tocsection-26"><a href="#Template"><span class="tocnumber">26</span> <span class="toctext">Template</span></a></li> <li class="toclevel-1 tocsection-27"><a href="#Template_style"><span class="tocnumber">27</span> <span class="toctext">Template style</span></a></li> <li class="toclevel-1 tocsection-28"><a href="#Upgrade_Package"><span class="tocnumber">28</span> <span class="toctext">Upgrade Package</span></a></li> </ul> </div> <h2><span class="mw-headline" id="Access_Control_List"><a href="/Special:MyLanguage/Access_Control_List" title="Special:MyLanguage/Access Control List">Access Control List</a></span></h2> <h2><span class="mw-headline" id="Alias"><a href="/Special:MyLanguage/Alias" title="Special:MyLanguage/Alias">Alias</a></span></h2> <h2><span class="mw-headline" id="Anchor">Anchor</span></h2> <p>An anchor is created using the <a> tag in HTML. An anchor allows you to place a bookmark inside an HTML page. In Joomla!, you can place an anchor inside an article (for example, using the <a href="/Content_editors#TinyMCE_editor" title="Content editors"> TinyMCE</a> editor). This lets you create a link that will go directly to that point in the article. </p><p> The HTML source code for an anchor looks like the following: </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><a name="my_anchor" title="My Anchor"></a></pre></div><p>You can link to an anchor from within the same page using the HTML code </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><a href="#my_anchor" ></a></pre></div><p>Clicking that link will take you directly to the location of the anchor tag. </p><p>You can link to an anchor in a different page by appending "#" plus the anchor name to the end of the URL. In the example above, if the URL for the article was <code>http://www.mysite.com/my_article.html</code>, then you could link directly to the anchor in that page with the URL <code>http://www.mysite.com/my_article.html#my_anchor</code>. </p> <h2><span class="mw-headline" id="Article"><a href="/Special:MyLanguage/Article" title="Special:MyLanguage/Article">Article</a></span></h2> <h2><span id="Cascading_Style_Sheet_(CSS)"></span><span class="mw-headline" id="Cascading_Style_Sheet_.28CSS.29"><a href="/Special:MyLanguage/Cascading_Style_Sheet_(CSS)" title="Special:MyLanguage/Cascading Style Sheet (CSS)">Cascading Style Sheet (CSS)</a></span></h2> <p>A Cascading Style Sheet or CSS is used to control the presentation of an XHTML page. For example, a CSS file will often control the font, margins, color, background graphics, and other aspects of a web page's appearance. CSS allows you to separate the content of an XHTML page from it's appearance. In Joomla!, CSS files (for example, template.css) are normally part of the template. </p><p><b>See also:</b> <a href="/Template" title="Template">Template</a>, <a href="/Page_Class_Suffix" title="Page Class Suffix">Page Class Suffix</a>, <a href="/Module_Class_Suffix" title="Module Class Suffix">Module Class Suffix</a> </p> <h2><span class="mw-headline" id="Category"><a href="/Special:MyLanguage/Category" title="Special:MyLanguage/Category">Category</a></span></h2> <p>Every part of Joomla! powered web site or any CMS type of web site needs a method to display and store its content logically. The usual method is by categories and subcategories. Joomla! allows for multiple ways to display and use content controlled by categorisation. Some of the content types which have categorisation are <a href="/Article" title="Article">articles</a> (Main content of web pages), banners, contacts and web links. </p><p>Joomla! category named "Uncategorised" is the default category, assigned to any and all content types. The "Uncategorised" category is not descriptive and should be used on as needed basis for content types which do not fall under a specific category. </p><p>When creating and assigning categories, you should have a planned structure. As an example, this is one way of how you would categorise several Joomla <a href="/Article" title="Article">articles</a> on birds. Create two top article categories called "Animals" and "Plants". Under the "Animals" category, you might have sub categories called "Birds" and "Mammals". Under the "Birds" sub category, you might have 3 articles named "Hawks," "Parrots" and "Sparrows". </p> <ul><li>Animals <ul><li>Birds <ul><li>Hawks</li> <li>Parrots</li> <li>Sparrows</li></ul></li> <li>Mammals</li></ul></li></ul> <p>The example above could be expanded even more with specific articles on different species of Hawks, Parrots and Sparrows. Start with using an "Animal" top Category, placing the sub categories "Birds" and "Mammals" are under the "Animal" category, and then a "Hawks," "Parrots" and "Sparrows" sub category under the "Birds" Sub Category as shown below. </p><p><br /> </p><p>Now you can create multiple articles in the Hawk, Parrot and Sparrow sub categories using the different genus or common names of the specific types of these 3 birds. </p><p>Categories and their sub categories are maintained using the "Category Manager" which can be reached in the administrator back-end interface by clicking on the "Content" menu type, then the "Category Manager" menu item for the type. </p><p><b>See also</b>: <a href="/Article" title="Article">Article</a> </p> <h2><span class="mw-headline" id="Chrome">Chrome</span></h2> <p>The visible graphical interface features of an application are sometimes referred to as <i>chrome</i>. See <a href="/Applying_custom_module_chrome" title="Applying custom module chrome">Applying custom module chrome</a> for information about how to modify the look of modules (in other words, the module "chrome"). </p> <h2><span class="mw-headline" id="Component"><a href="/Special:MyLanguage/Component" title="Special:MyLanguage/Component">Component</a></span></h2> <h2><span class="mw-headline" id="Core">Core</span></h2> <p>The word "core" in Joomla! pertains to the distributed files which are needed to create and administrate a Joomla CMS powered web site. These files can be downloaded from the Joomla website at <a target="_blank" rel="noreferrer noopener" class="external text" href="http://www.joomla.org/download.html">http://www.joomla.org/download.html</a>. The Joomla "core" also contains some basic functionality to get new Joomla installations working quickly and easily. Included are the user manager, article manager, weblink manager, category manager, contact manager, and menu manager. There is also a <a href="/Template" title="Template">template</a> manager with a few basic templates to power the front-end (website/user) view, a <a href="/Module" title="Module">module</a> manager with basic modules, <a href="/Plugin" title="Plugin">plugin</a> manager with basic plugins, and a few other "out of the box" <a href="/Extension" title="Extension">extensions</a> to extend the functionality of a basic Joomla installation. These core's extensions should not be confused with extensions which are available for downloading from the JED (Joomla! Extension Directory). </p><p><b>See also:</b> <a target="_blank" rel="noreferrer noopener" class="external text" href="http://extensions.joomla.org/">Joomla Extension Directory</a>. </p> <h2><span class="mw-headline" id="Database_Table_Prefix"><a href="/Special:MyLanguage/Database_Table_Prefix" title="Special:MyLanguage/Database Table Prefix">Database Table Prefix</a></span></h2> <p>The database table prefix is a string (a few characters long) prepended to the name of Joomla!'s <a href="/Tables" title="Tables">tables</a>. Using a prefix enables you to run multiple installations of Joomla! using a single database. </p><p>The database table prefix can be set during installation. Changing it later is possible, but requires access to the database through a non-Joomla medium or a Joomla Extension such as Akeeba Admin Tools and will cause some downtime. </p><p><a href="/Extension" title="Extension">Extension</a> developers need to use the string <code>#__</code> to represent the prefix. This will be replaced by the real prefix during runtime by Joomla. </p> <h2><span class="mw-headline" id="Extension"><a href="/Special:MyLanguage/Extension" title="Special:MyLanguage/Extension">Extension</a></span></h2> <h2><span class="mw-headline" id="LDAP"><a href="/Special:MyLanguage/LDAP" title="Special:MyLanguage/LDAP">LDAP</a></span></h2> <h2><span class="mw-headline" id="Language"><a href="/Special:MyLanguage/Language" title="Special:MyLanguage/Language">Language</a></span></h2> <p>Languages are perhaps the most basic and critical <a href="/Extensions" class="mw-redirect" title="Extensions">extension</a> type. Languages are packaged as either a core language pack or an extension language pack. These packages consist of INI files which contain key/value pairs. These key/value pairs provide the translation of static text strings within Joomla! source code. This allows both the Joomla! core and third party components and modules to be internationalised. Core language packs also include an XML meta file describing the language and providing information about the fonts to use for PDF content generation. </p> <h2><span class="mw-headline" id="Menu"><a href="/Special:MyLanguage/Menu" title="Special:MyLanguage/Menu">Menu</a></span></h2> <div class="mw-pt-languages noprint" lang="en" dir="ltr"><div class="mw-pt-languages-label">Other languages:</div><div class="mw-pt-languages-list"><a href="/Glossary/id" class="mw-pt-progress mw-pt-progress--complete" title="Pustaka (100% translated)" lang="id">Bahasa Indonesia</a> • ‎<a href="/Glossary/de" class="mw-pt-progress mw-pt-progress--complete" title="Glossar (100% translated)" lang="de">Deutsch</a> • ‎<span class="mw-pt-languages-ui mw-pt-languages-selected mw-pt-progress mw-pt-progress--complete" lang="en">English</span> • ‎<a href="/Glossary/sw" class="mw-pt-progress mw-pt-progress--complete" title="Glossary (100% translated)" lang="sw">Kiswahili</a> • ‎<a href="/Glossary/nl" class="mw-pt-progress mw-pt-progress--complete" title="Woordenlijst (100% translated)" lang="nl">Nederlands</a> • ‎<a href="/Glossary/tr" class="mw-pt-progress mw-pt-progress--complete" title="Terimler Dizini (100% translated)" lang="tr">Türkçe</a> • ‎<a href="/Glossary/ca" class="mw-pt-progress mw-pt-progress--complete" title="Glosari (100% translated)" lang="ca">català</a> • ‎<a href="/Glossary/da" class="mw-pt-progress mw-pt-progress--complete" title="Glossser (100% translated)" lang="da">dansk</a> • ‎<a href="/Glossary/et" class="mw-pt-progress mw-pt-progress--complete" title="Sõnastik (100% translated)" lang="et">eesti</a> • ‎<a href="/Glossary/es" class="mw-pt-progress mw-pt-progress--complete" title="Glosario (100% translated)" lang="es">español</a> • ‎<a href="/Glossary/fr" class="mw-pt-progress mw-pt-progress--complete" title="Glossaire (100% translated)" lang="fr">français</a> • ‎<a href="/Glossary/hr" class="mw-pt-progress mw-pt-progress--complete" title="Rječnik (100% translated)" lang="hr">hrvatski</a> • ‎<a href="/Glossary/it" class="mw-pt-progress mw-pt-progress--complete" title="Glossario (100% translated)" lang="it">italiano</a> • ‎<a href="/Glossary/hu" class="mw-pt-progress mw-pt-progress--high" title="Szószedet (67% translated)" lang="hu">magyar</a> • ‎<a href="/Glossary/pt" class="mw-pt-progress mw-pt-progress--complete" title="Glossário (100% translated)" lang="pt">português</a> • ‎<a href="/Glossary/pt-br" class="mw-pt-progress mw-pt-progress--complete" title="Glossário (100% translated)" lang="pt-BR">português do Brasil</a> • ‎<a href="/Glossary/el" class="mw-pt-progress mw-pt-progress--high" title="Λεξιλόγιο (67% translated)" lang="el">Ελληνικά</a> • ‎<a href="/Glossary/ru" class="mw-pt-progress mw-pt-progress--complete" title="Глоссарий (100% translated)" lang="ru">русский</a> • ‎<a href="/Glossary/ar" class="mw-pt-progress mw-pt-progress--complete" title="المصطلحات (100% translated)" lang="ar">العربية</a> • ‎<a href="/Glossary/fa" class="mw-pt-progress mw-pt-progress--low" title="واژه‌نامه (33% translated)" lang="fa">فارسی</a> • ‎<a href="/Glossary/bn" class="mw-pt-progress mw-pt-progress--complete" title="শব্দকোষ (100% translated)" lang="bn">বাংলা</a> • ‎<a href="/Glossary/th" class="mw-pt-progress mw-pt-progress--complete" title="อภิธานศัพท์ (100% translated)" lang="th">ไทย</a> • ‎<a href="/Glossary/zh-cn" class="mw-pt-progress mw-pt-progress--complete" title="术语表 (100% translated)" lang="zh-Hans-CN">中文（中国大陆）‎</a> • ‎<a href="/Glossary/zh-tw" class="mw-pt-progress mw-pt-progress--complete" title="專業術語 (100% translated)" lang="zh-Hant-TW">中文（台灣）‎</a> • ‎<a href="/Glossary/ja" class="mw-pt-progress mw-pt-progress--complete" title="用語集 (100% translated)" lang="ja">日本語</a></div></div> <p>In Joomla!, a <b>Menu</b> is a set of <b>menu items</b> used for website navigation. Each menu item defines an URL to a page on your site, and holds settings that control the contents (articles, category(ies) lists, tagged items, etc) and style (module(s), layout) of that page. </p><p><b><a href="/Special:MyLanguage/Adding_a_new_menu" title="Special:MyLanguage/Adding a new menu">Creating menus</a></b> is rather simple. From the Admin Menu, in the backend of your Joomla! site, you choose: <b>Menus > Menu Manager > Add New Menu</b>. On the opened to you <b>Menu Manager: Add Menu</b> page enter your menu title into the "Title *" field (mandatory), your menu type into the "Menu type *" field (mandatory) and, if you wish, your menu brief description into the "Description" field (optional). After that you can start <b><a href="/Special:MyLanguage/Adding_a_new_menu_item" title="Special:MyLanguage/Adding a new menu item">adding new menu items</a></b> to this new menu. </p><p>Any website can have more than one menu. </p> <h2><span class="mw-headline" id="Model-View-Controller"><a href="/Special:MyLanguage/Model-View-Controller" title="Special:MyLanguage/Model-View-Controller">Model-View-Controller</a></span></h2> <p>Joomla makes extensive use of the <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://en.wikipedia.org/wiki/Model-view-controller">Model-View-Controller</a> design pattern. </p><p>When Joomla is started to process a request from a user, such as a GET for a particular page, or a POST containing form data, one of the first things that Joomla does is to analyse the URL to determine which component will be responsible for processing the request, and hand control over to that component. </p><p>If the component has been designed according to the MVC pattern, it will pass control to the controller. The controller is responsible for analysing the request and determining which model(s) will be needed to satisfy the request, and which view should be used to return the results back to the user. </p><p>The model encapsulates the data used by the component. In most cases this data will come from a database, either the Joomla database, or some external database, but it is also possible for the model to obtain data from other sources, such as via a web services API running on another server. The model is also responsible for updating the database where appropriate. The purpose of the model is to isolate the controller and view from the details of how data is obtained or amended. </p><p>The view is responsible for generating the output that gets sent to the browser by the component. It calls on the model for any information it needs and formats it appropriately. For example, a list of data items pulled from the model could be wrapped into an HTML table by the view. </p><p>Since Joomla is designed to be highly modular, the output from the component is generally only part of the complete web page that the user will ultimately see. Once the view has generated the output, the component hands control back to the Joomla framework which then loads and executes the template. The template combines the output from the component, and any modules that are active on the current page, so that it can be delivered to the browser as a single page. </p><p>To provide additional power and flexibility to web designers, who may only be concerned with creating new designs rather than manipulating the underlying code, Joomla splits the traditional view into a separate view and layout. The view pulls data from the model, as in a traditional MVC pattern, but then simply makes that data available to the layout, which is responsible for formatting the data for presentation to the user. The advantage of having this split is that the Joomla template system provides a simple mechanism for layouts to be overridden in the template. These layout overrides (often called "template overrides" because they form part of the template, although actually it is the layout that is being overridden) are bundled with the template and give the template designer complete control over all the output from the Joomla core and any installed third-party extensions that comply with the MVC design pattern. </p> <h2><span class="mw-headline" id="Module"><a href="/Special:MyLanguage/Module" title="Special:MyLanguage/Module">Module</a></span></h2> <h2><span class="mw-headline" id="Module_Class_Suffix"><a href="/Special:MyLanguage/Module_Class_Suffix" title="Special:MyLanguage/Module Class Suffix">Module Class Suffix</a></span></h2> <p>Module Class Suffix is a parameter in Joomla! modules. It is set Module: [Edit] screen under Advanced Parameters. Setting this parameter causes Joomla! to either add a new CSS class or modify the existing CSS class for the <code>div</code> element for this specific module. </p><p> When Joomla! generates a module, it automatically create a CSS class called "moduletable" to allow styling of the module -- for example, </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><div class="moduletable"></pre></div><p> To create a new class, enter the parameter with a leading space. For example, entering a space plus "myNewClass" will create a new CSS class called "myNewClass". The HTML will be changed to </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><div class="moduletable myNewClass"></pre></div><p> To change the name of the existing class, enter in the parameter without a leading space. For example, entering "_mySuffix" (no leading space) will cause the HTML to changed to </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><div class="moduletable_mySuffix"></pre></div> <p>Generally, it is recommended to use a leading space to create a new class. This way, CSS styling for this module that uses the standard class names will continue to work. You can use the new class name to add any desired styling to the module without needing to re-create all of the existing CSS code. Note that, if you create a new class name, make sure it has a unique name and doesn't conflict with any existing class names. </p><p>See <a href="/Using_Class_Suffixes" title="Using Class Suffixes">Using Class Suffixes</a> for more information. </p> <h2><span class="mw-headline" id="Module_Position"><a href="/Special:MyLanguage/Module_Position" title="Special:MyLanguage/Module Position">Module Position</a></span></h2> <h2><span class="mw-headline" id="Module_chrome"><a href="/Special:MyLanguage/Module_chrome" title="Special:MyLanguage/Module chrome">Module chrome</a></span></h2> <h2><span class="mw-headline" id="PHP"><a href="/Special:MyLanguage/PHP" title="Special:MyLanguage/PHP">PHP</a></span></h2> <p>PHP is a computer scripting language designed for creating dynamic web pages. PHP is widely-used for web development and can be embedded into <a href="/Where_can_you_learn_about_HTML%3F" class="mw-redirect" title="Where can you learn about HTML?">HTML</a>. It generally runs on a web server, taking PHP code as its input and creating web pages as output. Joomla! is primarily written using the PHP language. For more information, see <a href="/Where_can_you_learn_about_PHP" title="Where can you learn about PHP">Where can you learn about PHP?</a> </p> <h2><span class="mw-headline" id="Page_Class_Suffix"><a href="/Special:MyLanguage/Page_Class_Suffix" title="Special:MyLanguage/Page Class Suffix">Page Class Suffix</a></span></h2> <p>Page Class Suffix is a parameter in Joomla! content menu items. It is set in a particular menu item: [Edit Menu Item] page, under the "Page Display" tab. A new page class suffix will cause Joomla! to either add a new CSS class or modify the existing CSS class for elements in the assigned to this very menu item page layout. </p><p> When Joomla! generates a page, it automatically creates pre-defined CSS classes to allow styling of the page. For example, a page might have the element </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><div class="componentheading"></pre></div><p> To create a new class, enter the parameter with a leading space. For example, entering a space plus "myNewClass" will create a new CSS class called "myNewClass" and it will be inserted as a class for elements in that Menu Item. In this case the example above will be changed to </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><div class="componentheading myNewClass"></pre></div><p> To change the name of the existing class, enter in the parameter without a leading space. For example, entering "_mySuffix" (no leading space) will cause the HTML to changed to </p><div class="mw-highlight mw-highlight-lang-html mw-content-ltr" dir="ltr"><pre><div class="componentheading_mySuffix"></pre></div> <p>Generally, it is recommended to use a leading space to create a new class. This way, CSS styling for this component that uses the standard class names will continue to work. You can use the new class name to add any desired styling to the component without needing to re-create all of the existing CSS code. Note that, if you create a new class name, make sure it has a unique name and doesn't conflict with any existing class names. </p><p><b>See also:</b> <a href="/Using_Class_Suffixes" title="Using Class Suffixes">Using Class Suffixes</a>, <a href="/Using_the_Page_Class_Suffix_in_Template_Code" title="Using the Page Class Suffix in Template Code">Using the Page Class Suffix in Template Code</a> </p> <h2><span class="mw-headline" id="Patch"><a href="/Special:MyLanguage/Patch" title="Special:MyLanguage/Patch">Patch</a></span></h2> <h2><span class="mw-headline" id="Plugin"><a href="/Special:MyLanguage/Plugin" title="Special:MyLanguage/Plugin">Plugin</a></span></h2> <h2><span class="mw-headline" id="Search_Engine_Friendly_URLs"><a href="/Special:MyLanguage/Search_Engine_Friendly_URLs" title="Special:MyLanguage/Search Engine Friendly URLs">Search Engine Friendly URLs</a></span></h2> <p>Search engine friendly URLs is a term commonly abbreviated as SEF URLs or SEF for short. Normal Joomla! URLs look something like this: </p> <pre>http://www.yoursite.org/index.php?option=com_content&view=section&id=3&Itemid=41</pre> <p>You can optionally have URLs display to look like static HTML pages like this: </p> <pre>http://www.yoursite.org/faq.html</pre> <p>Since Joomla! 1.5, there are built-in options for generating SEF URLs. These are enabled by changing the "SEO Settings" (Search Engine Optimisation) in the Site tab in the Global Configuration screen in the Joomla! back end. There are also third-party extensions that create SEF URLs for Joomla!. </p> <h2><span class="mw-headline" id="Split_menus"><a href="/Special:MyLanguage/Split_menus" title="Special:MyLanguage/Split menus">Split menus</a></span></h2> <p>A <a href="/Split_menus" title="Split menus">split menu</a> is where different levels of a single menu are displayed in two or more locations on a single web page. </p><p>For example, a common requirement is for a menu of top-level items to appear at the top of the page. When one of the items is clicked the user is taken to a page where a secondary menu, say on the left of the page, shows second-level items within the scope of the top-level item. </p><p>The menus appear in separate locations on the page, but are related because one shows only top-level items while the other shows second-level items. This idea can be extended to include menus for third-level items and beyond. </p><p>This can be implemented in Joomla using a single multi-level menu then creating more than one menu module each referring to a different level. </p><p><b>See also</b>: <a href="/Menu" title="Menu">Menu</a> </p> <h2><span class="mw-headline" id="Template"><a href="/Special:MyLanguage/Template" title="Special:MyLanguage/Template">Template</a></span></h2> <p>A template is a type of Joomla! <a href="/Extension" title="Extension">extension</a> that changes the way your site looks. There are two types of templates used by the Joomla! CMS: <a href="/Template#Front-end_Templates" title="Template">Front-end Templates</a> and <a href="/Template#Back-end_Templates" title="Template">Back-end Templates</a>. The Front-end Template controls the way your website is presented to the user viewing the website's content. The Back-end Template controls the way your website's administrative tasks are presented for controlling management functions by a Joomla! Administrator. These would include common tasks such as: user, menu, article, category, module, component, plugin and template management. </p><p><b>See also</b>: <a href="/Component" title="Component">Component</a>, <a href="/Module" title="Module">Module</a>, <a href="/Plugin" title="Plugin">Plugin</a> </p> <h2><span class="mw-headline" id="Template_style"><a href="/Special:MyLanguage/Template_style" title="Special:MyLanguage/Template style">Template style</a></span></h2> <h2><span class="mw-headline" id="Upgrade_Package">Upgrade Package</span></h2> <p>An Upgrade Package in Joomla! is an archive of files that contain the files that have changed between Joomla! versions. When this archive is unpacked, it replaces the old version of the modified files with the new version. For example, if fifty files were changed between version 3.x.1 and 3.x.2, the upgrade package from 3.x.1 to 3.x.2 would contain these fifty files and, when unpacked, would replace these fifty files and upgrade the installed version from 3.x.1 to 3.x.2. </p><p>Upgrade Packages are also sometimes referred to as <a href="/Patch" title="Patch">patch files</a>. Before installing an Upgrade Package, read the <a href="/Joomla_1.5_version_history" title="Joomla 1.5 version history">release notes</a> and the <a href="/Upgrade_Instructions" class="mw-redirect" title="Upgrade Instructions">Upgrade Instructions</a> relating to the Upgrade Package. </p><p><br /> </p>   </div></div></div><div class="printfooter"> Retrieved from "<a dir="ltr" href="https://docs.joomla.org/index.php?title=Glossary&oldid=431195">https://docs.joomla.org/index.php?title=Glossary&oldid=431195</a>"</div> <div class="clear_both"></div> </div> <div class="group"><div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/Special:Categories" title="Special:Categories">Categories</a>: <ul><li><a href="/Category:Landing_Pages" title="Category:Landing Pages">Landing Pages</a></li><li><a href="/Category:Help_screen_3.x" title="Category:Help screen 3.x">Help screen 3.x</a></li><li><a href="/Category:Help_screen_3.0" title="Category:Help screen 3.0">Help screen 3.0</a></li><li><a href="/Category:Help_screen_3.1" title="Category:Help screen 3.1">Help screen 3.1</a></li><li><a href="/Category:Help_screen_3.2" title="Category:Help screen 3.2">Help screen 3.2</a></li><li><a href="/Category:Help_screen_3.3" title="Category:Help screen 3.3">Help screen 3.3</a></li><li><a href="/Category:Help_screen_3.4" title="Category:Help screen 3.4">Help screen 3.4</a></li><li><a href="/Category:Help_screen_3.5" title="Category:Help screen 3.5">Help screen 3.5</a></li><li><a href="/Category:Help_screen_3.6" title="Category:Help screen 3.6">Help screen 3.6</a></li><li><a href="/Category:Help_screen_3.7" title="Category:Help screen 3.7">Help screen 3.7</a></li></ul></div></div></div> </article> </div> </div> <footer class="row"> <div id="footer"> <div id="footer-left" class="large-8 small-12 columns"> <ul id="footer-left"> <li id="footer-lastmod"> This page was last edited on 2 July 2017, at 03:26.</li> <li id="footer-copyright">Content is available under <a href="/JEDL" title="JEDL">Joomla! 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