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Manual:Hooks/ParserFirstCallInit - MediaWiki

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<div id="siteSub" class="noprint">From mediawiki.org</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><div class="subpages">&lt; <bdi dir="ltr"><a href="/wiki/Special:MyLanguage/Manual:Hooks" title="Special:MyLanguage/Manual:Hooks">Manual:Hooks</a></bdi></div></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-pt-translate-header noprint nomobile" dir="ltr" lang="en"><a href="/w/index.php?title=Special:Translate&amp;group=page-Manual%3AHooks%2FParserFirstCallInit&amp;action=page&amp;filter=&amp;action_source=translate_page" title="Special:Translate">Translate this page</a></div><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="mw-pt-languages noprint navigation-not-searchable" lang="en" dir="ltr"><div class="mw-pt-languages-label">Languages:</div><ul class="mw-pt-languages-list"><li><a href="/wiki/Manual:Hooks/ParserFirstCallInit/de" class="mw-pt-progress mw-pt-progress--med" title="Handbuch:Hooks/ParserFirstCallInit (27% translated)" lang="de" dir="ltr">Deutsch</a></li> <li><span class="mw-pt-languages-ui mw-pt-languages-selected mw-pt-progress mw-pt-progress--complete" lang="en" dir="ltr">English</span></li> <li><a href="/wiki/Manual:Hooks/ParserFirstCallInit/dtp" class="mw-pt-progress mw-pt-progress--med" title="Manual:Hooks/ParserFirstCallInit/dtp (18% translated)" lang="dtp" dir="ltr">Kadazandusun</a></li> <li><a href="/wiki/Manual:Hooks/ParserFirstCallInit/fr" class="mw-pt-progress mw-pt-progress--med" title="Manuel:Hooks/ParserFirstCallInit (45% translated)" lang="fr" dir="ltr">français</a></li> <li><a href="/wiki/Manual:Hooks/ParserFirstCallInit/pl" class="mw-pt-progress mw-pt-progress--med" title="Manual:Hooks/ParserFirstCallInit/pl (27% translated)" lang="pl" dir="ltr">polski</a></li> <li><a href="/wiki/Manual:Hooks/ParserFirstCallInit/cs" class="mw-pt-progress mw-pt-progress--high" title="Příručka:Háčky/Inicializace prvního volání analyzátoru (73% translated)" lang="cs" dir="ltr">čeština</a></li> <li><a href="/wiki/Manual:Hooks/ParserFirstCallInit/ar" class="mw-pt-progress mw-pt-progress--complete" title="دليل:وصلات/ParserFirstCallInit (100% translated)" lang="ar" dir="rtl">العربية</a></li> <li><a href="/wiki/Manual:Hooks/ParserFirstCallInit/ja" class="mw-pt-progress mw-pt-progress--med" title="Manual:フック/ParserFirstCallInit (55% translated)" lang="ja" dir="ltr">日本語</a></li></ul></div> <table style="text-align: left; border: 1px solid #a2a9b1; border-collapse: collapse; margin: auto; clear: both;" cellpadding="5"> <tbody><tr> <th colspan="2" style="background-color: #eaecf0; font-size: 120%; text-align: center; padding: .5em;">ParserFirstCallInit </th></tr> <tr> <td colspan="2" style="text-align:center;"><i>Available from <a href="/wiki/Special:MyLanguage/MediaWiki_1.12" title="Special:MyLanguage/MediaWiki 1.12">version 1.12.0</a></i><br />called when the parser initializes for the first time<br /> </td></tr> <tr> <td><b>Define function:</b> </td> <td><div class="mw-highlight mw-highlight-lang-php mw-content-ltr" dir="ltr"><pre><span></span><span class="k">public</span> <span class="k">static</span> <span class="k">function</span> <span class="nf">onParserFirstCallInit</span><span class="p">(</span> <span class="nx">Parser</span> <span class="nv">$parser</span> <span class="p">)</span> <span class="p">{</span> <span class="o">...</span> <span class="p">}</span> </pre></div> </td></tr> <tr> <td style="vertical-align:top"><b>Attach hook:</b> </td> <td>In <a href="/wiki/Special:MyLanguage/Manual:extension.json" title="Special:MyLanguage/Manual:extension.json">extension.json</a>: <div class="mw-highlight mw-highlight-lang-json mw-content-ltr" dir="ltr"><pre><span></span><span class="p">{</span> <span class="w"> </span><span class="nt">&quot;Hooks&quot;</span><span class="p">:</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="nt">&quot;ParserFirstCallInit&quot;</span><span class="p">:</span><span class="w"> </span><span class="s2">&quot;MediaWiki\\Extension\\MyExtension\\Hooks::onParserFirstCallInit&quot;</span> <span class="w"> </span><span class="p">}</span> <span class="p">}</span> </pre></div> </td></tr> <tr> <td style="padding:0.3em"><b>Called from:</b> </td> <td><b>File(s):</b> <a class="external text" href="https://gerrit.wikimedia.org/g/mediawiki/core/+/master/includes/parser/Parser.php">parser/Parser.php</a><br /><b>Function(s):</b> <span class="plainlinks"><a class="external text" href="https://doc.wikimedia.org/mediawiki-core/master/php/classParser.html">__construct</a></span> </td></tr> <tr> <td><b>Interface:</b> </td> <td><a class="external text" href="https://doc.wikimedia.org/mediawiki-core/master/php/ParserFirstCallInitHook_8php.html">ParserFirstCallInitHook.php</a> </td></tr></tbody></table> <div style="text-align:center"> <p><i>For more information about attaching hooks, see <a href="/wiki/Special:MyLanguage/Manual:Hooks" title="Special:MyLanguage/Manual:Hooks">Manual:Hooks</a><span style="display:none"><a href="/wiki/Manual:Hooks" title="Manual:Hooks"> </a></span>.</i> <br /> <i>For examples of extensions using this hook, see <a href="/wiki/Category:ParserFirstCallInit_extensions" title="Category:ParserFirstCallInit extensions">Category:ParserFirstCallInit extensions</a>.</i> </p> </div> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Details">Details</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manual:Hooks/ParserFirstCallInit&amp;action=edit&amp;section=1" title="Edit section: Details"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Parser $parser: Parser object being initialized</li></ul> <div class="mw-heading mw-heading2"><h2 id="Examples">Examples</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manual:Hooks/ParserFirstCallInit&amp;action=edit&amp;section=2" title="Edit section: Examples"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>For examples on how this hook should be used, please see: </p> <ul><li><a href="/wiki/Special:MyLanguage/Manual:Parser_functions" title="Special:MyLanguage/Manual:Parser functions">Manual:Parser functions</a><span style="display:none"><a href="/wiki/Manual:Parser_functions" title="Manual:Parser functions"> </a></span> - using curly braces such as {{#expr: ... }}</li> <li><a href="/wiki/Special:MyLanguage/Manual:Tag_extensions" title="Special:MyLanguage/Manual:Tag extensions">Manual:Tag extensions</a><span style="display:none"><a href="/wiki/Manual:Tag_extensions" title="Manual:Tag extensions"> </a></span> - using XML-type tags such as <style data-mw-deduplicate="TemplateStyles:r4673781">.mw-parser-output .nowrap,.mw-parser-output .nowrap a:before,.mw-parser-output .nowrap .selflink:before{white-space:nowrap}</style><code class="mw-highlight nowrap"><span class="p">&#8206;&lt;</span><span class="nt">ref</span><span class="p">&gt;</span>...<span class="p">&#8206;&lt;&#47;</span><span class="nt">ref</span><span class="p">&gt;</span></code></li></ul> <div class="mw-heading mw-heading2"><h2 id="Phabricator">Phabricator</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manual:Hooks/ParserFirstCallInit&amp;action=edit&amp;section=3" title="Edit section: Phabricator"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="https://phabricator.wikimedia.org/T299528" class="extiw" title="phab:T299528">phab:T299528</a> - Deprecate and remove ParserFirstCallInit hook (move hook/tag registration out of Parser constructor)</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Manual:Hooks/ParserFirstCallInit&amp;action=edit&amp;section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Special:MyLanguage/Manual:ParserFirstCallInitHook.php" title="Special:MyLanguage/Manual:ParserFirstCallInitHook.php">Manual:ParserFirstCallInitHook.php</a><span style="display:none"><a href="/wiki/Manual:ParserFirstCallInitHook.php" title="Manual:ParserFirstCallInitHook.php"> </a></span></li></ul> <!-- NewPP limit report Parsed by mw‐web.eqiad.main‐5d74f7b59c‐7kmdc Cached time: 20241217154914 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.182 seconds Real time usage: 0.346 seconds Preprocessor visited node count: 1196/1000000 Post‐expand include size: 7222/2097152 bytes Template argument size: 2159/2097152 bytes Highest expansion depth: 14/100 Expensive parser function count: 13/500 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