3 Magic Words are some phrases used in the wikitext. They are used for two things:
4 * Variables (like {{PAGENAME}}, {{SERVER}}, ...): part of wikitext, that looks
5 like templates but that don't accept any parameter.
6 * Parser functions (like {{fullurl:...}}, {{#special:...}}): behaves like
7 functions and accepts parameters.
9 The localized arrays keys are the internal name, and the values are an array,
10 whose include their case-sensitivity and their alias forms. The first form
11 defined is used by the program, for example, when moving a page and its old name
12 should include #REDIRECT.
14 They can be added in several arrays:
15 * By adding a file to $wgExtensionMessagesFiles and defining there $magicWords.
16 This array is associative with the language code in the first dimension key
17 and then a "normal" array of magic words.
18 * Localized arrays (languages/messages/LanguageXX.php) include their different
19 names to be used by the users.
21 To add a new variable, you should use the "MagicWordwgVariableIDs" hook to add
22 the internal name to the $magicWords array. You'll need to define the value of
23 the variable with the "ParserGetVariableValueSwitch" hook.
25 For example to add a new variable:
27 Create a file called ExtensionName.i18n.magic.php with the following contents:
31 $magicWords = array();
33 $magicWords['en'] = array(
35 'mag_custom' => array( 1, 'CUSTOM' ),
38 $magicWords['es'] = array(
39 'mag_custom' => array( 1, 'ADUANERO' ),
43 $wgExtensionMessagesFiles['ExtensionNameMagic'] = __DIR__ . '/ExtensionName.i18n.magic.php';
44 $wgHooks['MagicWordwgVariableIDs'][] = 'wfAddCustomMagicWordID';
45 $wgHooks['ParserGetVariableValueSwitch'][] = 'wfGetCustomMagicWordValue';
47 function wfAddCustomMagicWordID( &$magicWords ) {
48 $magicWords[] = 'mag_custom';
52 function wfGetCustomMagicWordValue( &$parser, &$varCache, &$index, &$ret ){
53 if( $index == 'mag_custom' ){
54 $ret = $varCache['mag_custom'] = "Custom value";
59 And to add a new parser function:
61 Create a file called ExtensionName.i18n.magic.php with the following contents:
65 $magicWords = array();
67 $magicWords['en'] = array(
69 'mag_custom' => array( 0, 'custom' ),
72 $magicWords['es'] = array(
73 'mag_custom' => array( 0, 'aduanero' ),
77 $wgExtensionMessagesFiles['ExtensionNameMagic'] = __DIR__ . '/ExtensionName.i18n.magic.php';
78 $wgHooks['ParserFirstCallInit'][] = 'wfRegisterCustomMagicWord';
80 function wfRegisterCustomMagicWord( &$parser ){
81 $parser->setFunctionHook( 'mag_custom', 'wfGetCustomMagicWordValue' );
85 function wfGetCustomMagicWordValue( &$parser, $var1, $var2 ){
86 return "custom: var1 is $var1, var2 is $var2";
89 Note: the 'ParserFirstCallInit' hook is only aviable since 1.12. To work with
90 an older version, you'll need to use an extension function.
92 Online documentation (contains more informations):
93 Magic words: http://www.mediawiki.org/wiki/Manual:Magic_words
94 Variables: http://www.mediawiki.org/wiki/Manual:Variable
95 Parser functions: http://www.mediawiki.org/wiki/Manual:Parser_functions