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        <title>Aldolat.it &#8212; Post con tag Sidebar</title>
        <link>https://www.aldolat.it/tags/sidebar/</link>
        <description>Ultimi post pubblicati nel tag Sidebar &#8212; aldolat.it</description>
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        <language>it</language>
        <managingEditor>aldolat@gmail.com (Aldo Latino)</managingEditor>
        <webMaster>aldolat@gmail.com (Aldo Latino)</webMaster>
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        <lastBuildDate>Fri, 28 Aug 2026 11:56:44 +0200</lastBuildDate>
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            <title>Un menu laterale con le sottopagine</title>
            <link>https://www.aldolat.it/posts/2009/un-menu-laterale-con-le-sottopagine/</link>
            <pubDate>Thu, 22 Jan 2009 10:25:42 +0000</pubDate>
            <author>aldolat@gmail.com (Aldo Latino)</author>
            <guid>https://www.aldolat.it/posts/2009/un-menu-laterale-con-le-sottopagine/</guid>
            <description>Dopo aver aggiunto nel menu in cima alla testata tutte le pagine e sottopagine del blog in un dropdown menu, ho rivisitato ultimamente la mia sidebar, togliendo un po&amp;rsquo; di elementi superflui. Uno di questi rimaneggiamenti riguarda l&amp;rsquo;inclusione di un menu in cima alla stessa sidebar che compare solo quando si sta visitando una pagina che contiene delle sottopagine oppure se si è in una di queste sottopagine. Penso che sia un servizio ulteriore per facilitare la navigazione di questo inutile blog. Un modello di applicazione lo potete vedere visitando, ad esempio, la pagina Iniziare con Linux: in cima alla sidebar apparirà un piccolo menu con le sottopagine; e questo menu rimarrà anche se visitate una delle sottopagine. Il titolo del menu recita: &amp;ldquo;Sottopagine di XYZ&amp;rdquo;, dove XYZ è il titolo della pagina madre ed è anche cliccabile per tornare su di un livello.</description>
            <content:encoded>&lt;p&gt;Dopo aver aggiunto nel menu in cima alla testata tutte le pagine e sottopagine del blog in un &lt;em&gt;dropdown menu&lt;/em&gt;, ho rivisitato ultimamente la mia sidebar, togliendo un po&amp;rsquo; di elementi superflui. Uno di questi rimaneggiamenti riguarda l&amp;rsquo;inclusione di un menu in cima alla stessa sidebar che compare &lt;em&gt;solo&lt;/em&gt; quando si sta visitando una pagina che contiene delle sottopagine oppure se si è in una di queste sottopagine. Penso che sia un servizio ulteriore per facilitare la navigazione di questo inutile blog. Un modello di applicazione lo potete vedere visitando, ad esempio, la pagina &lt;a href=&#34;https://www.aldolat.it/progetti/gnu-linux/cosa-e-gnu-linux/&#34;&gt;Iniziare con Linux&lt;/a&gt;: in cima alla sidebar apparirà un piccolo menu con le sottopagine; e questo menu rimarrà anche se visitate una delle sottopagine. Il titolo del menu recita: &amp;ldquo;Sottopagine di XYZ&amp;rdquo;, dove XYZ è il titolo della pagina madre ed è anche cliccabile per tornare su di un livello.&lt;/p&gt;&#xA;&lt;p&gt;Se siete interessati ad implementarlo anche nel vostro tema, seguite il resto dell&amp;rsquo;articolo.&lt;/p&gt;&#xA;&lt;h2 id=&#34;il-codice&#34;&gt;Il codice&lt;/h2&gt;&#xA;&lt;p&gt;Questo pezzo di codice si rifà a quanto scritto &lt;a href=&#34;http://codex.wordpress.org/Template_Tags/wp_list_pages#List_subpages_even_if_on_a_subpage&#34;&gt;nella pagina&lt;/a&gt; del Codex di WordPress, con alcuni adattamenti. Andrebbe inserito nella vostra sidebar o comunque dove desiderate.&lt;/p&gt;&#xA;&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; class=&#34;chroma&#34;&gt;&lt;code class=&#34;language-html&#34; data-lang=&#34;html&#34;&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;&amp;lt;?php&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;// Assegnazione di una funzione alla variabile $children in base ad alcuni criteri&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;if($post-&amp;gt;post_parent) // Se la pagina ha un genitore, la variabile ne mostrerà le figlie&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;    $children = wp_list_pages(&amp;#34;title_li=&amp;amp;child_of=&amp;#34;.$post-&amp;gt;post_parent.&amp;#34;&amp;amp;echo=0&amp;#34;);&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;else // altrimenti, cioè se non ha un genitore, mostrerà le proprie figlie&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;    $children = wp_list_pages(&amp;#34;title_li=&amp;amp;child_of=&amp;#34;.$post-&amp;gt;ID.&amp;#34;&amp;amp;echo=0&amp;#34;);&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;// Assegnata una delle due funzioni alla variabile, verifichiamo le condizioni della pagina che si sta generando&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;if ($children) /* Se $children è vera, cioè se ha sottopagine o è una di esse, allora esegue il restante codice */ { ?&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;    &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;div&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;class&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;boxside&amp;#34;&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;h2&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;Sottopagine di &#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;            &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;a&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;href&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;&amp;lt;?php echo (get_permalink($post-&amp;gt;post_parent)); ?&amp;gt;&amp;#34;&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;title&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;Torna alla pagina &amp;lt;?php echo get_the_title($post-&amp;gt;post_parent); ?&amp;gt;&amp;#34;&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;                &lt;span class=&#34;cp&#34;&gt;&amp;lt;?php echo get_the_title($post-&amp;gt;post_parent); ?&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;            &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;a&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;h2&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;ul&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;class&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;pages&amp;#34;&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;            &lt;span class=&#34;cp&#34;&gt;&amp;lt;?php echo $children; ?&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;ul&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;    &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;div&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;&amp;lt;?php } /* Se $children non è vera, cioè se non ha sottopagine, allora non visualizza nulla */?&amp;gt;&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;pre&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;Ho commentato il codice così come l&amp;rsquo;ho compreso io, che non so nulla di PHP. Eliminate i commenti, se desiderate usarlo, oppure prelevatevi questo ripulito:&lt;/p&gt;&#xA;&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; class=&#34;chroma&#34;&gt;&lt;code class=&#34;language-html&#34; data-lang=&#34;html&#34;&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;&amp;lt;?php&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;if($post-&amp;gt;post_parent)&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;    $children = wp_list_pages(&amp;#34;title_li=&amp;amp;child_of=&amp;#34;.$post-&amp;gt;post_parent.&amp;#34;&amp;amp;echo=0&amp;#34;);&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;else&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;    $children = wp_list_pages(&amp;#34;title_li=&amp;amp;child_of=&amp;#34;.$post-&amp;gt;ID.&amp;#34;&amp;amp;echo=0&amp;#34;);&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;if ($children) { ?&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;    &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;div&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;class&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;boxside&amp;#34;&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;h2&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;Sottopagine di &#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;            &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;a&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;href&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;&amp;lt;?php echo (get_permalink($post-&amp;gt;post_parent)); ?&amp;gt;&amp;#34;&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;title&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;Torna alla pagina &amp;lt;?php echo get_the_title($post-&amp;gt;post_parent); ?&amp;gt;&amp;#34;&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;                &lt;span class=&#34;cp&#34;&gt;&amp;lt;?php echo get_the_title($post-&amp;gt;post_parent); ?&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;            &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;a&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;h2&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;ul&lt;/span&gt; &lt;span class=&#34;na&#34;&gt;class&lt;/span&gt;&lt;span class=&#34;o&#34;&gt;=&lt;/span&gt;&lt;span class=&#34;s&#34;&gt;&amp;#34;pages&amp;#34;&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;            &lt;span class=&#34;cp&#34;&gt;&amp;lt;?php echo $children; ?&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;        &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;ul&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;    &lt;span class=&#34;p&#34;&gt;&amp;lt;/&lt;/span&gt;&lt;span class=&#34;nt&#34;&gt;div&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;cp&#34;&gt;&amp;lt;?php } ?&amp;gt;&lt;/span&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;h2 id=&#34;personalizzazione-del-codice&#34;&gt;Personalizzazione del codice&lt;/h2&gt;&#xA;&lt;p&gt;Il codice utilizza alcune classi presenti nel mio foglio stile: ad esempio, la classe &lt;code&gt;boxside&lt;/code&gt; mi crea un box come quelli che vedete nella sidebar; è quindi obbligatorio per voi cambiare queste classi con quelle che usate nel vostro tema o crearne di nuove, se necessario. Stessa cosa dicasi per la classe &lt;code&gt;pages&lt;/code&gt; applicata al tag &lt;code&gt;ul&lt;/code&gt;.&lt;/p&gt;&#xA;&lt;h2 id=&#34;qualche-problema-istruttivo-e-risolto-nel-mio-blog&#34;&gt;Qualche problema (istruttivo e risolto) nel mio blog&lt;/h2&gt;&#xA;&lt;p&gt;Mentre questo codice funziona perfettamente in tutte le pagine &amp;ldquo;statiche&amp;rdquo; e relative sottopagine, stranamente non appariva in due sole pagine: &lt;a href=&#34;https://www.aldolat.it/posts/&#34;&gt;Archivio&lt;/a&gt; e &lt;a href=&#34;https://www.aldolat.it/tags/featured/&#34;&gt;Featured posts&lt;/a&gt;.&lt;br&gt;&#xA;Ho provato a spostare il richiamo della sidebar prima della creazione della colonna centrale e&amp;hellip; voilà!, ecco spuntare anche in queste pagine il sottomenu. Ho poi dovuto aggiungere una ulteriore riga sotto il richiamo della sidebar, perché in essa c&amp;rsquo;è già un &lt;code&gt;query_posts&lt;/code&gt; che mi faceva apparire il titolo di quella query come titolo della pagina. Ecco la riga:&lt;/p&gt;&#xA;&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; class=&#34;chroma&#34;&gt;&lt;code class=&#34;language-php&#34; data-lang=&#34;php&#34;&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;o&#34;&gt;&amp;lt;?&lt;/span&gt;&lt;span class=&#34;nx&#34;&gt;php&lt;/span&gt; &lt;span class=&#34;nv&#34;&gt;$post&lt;/span&gt; &lt;span class=&#34;o&#34;&gt;=&lt;/span&gt; &lt;span class=&#34;nv&#34;&gt;$posts&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;[&lt;/span&gt;&lt;span class=&#34;mi&#34;&gt;0&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;];&lt;/span&gt; &lt;span class=&#34;cp&#34;&gt;?&amp;gt;&lt;/span&gt;&lt;span class=&#34;err&#34;&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;Con essa azzero la precedente interrogazione del database.&lt;/p&gt;&#xA;&lt;p&gt;Ho aperto ieri &lt;a href=&#34;http://wordpress.org/support/topic/236173&#34;&gt;una discussione&lt;/a&gt; sul forum di WordPress per tentare di capire la ragione di quella sparizione. Probabilmente perché in quei due template manca il loop principale? O perché i vari &lt;code&gt;query_posts&lt;/code&gt; presenti &amp;ldquo;spezzano&amp;rdquo; (per intenderci) la sequenza genitore/figlio?&lt;/p&gt;&#xA;&lt;p&gt;&lt;strong&gt;[Aggiornamento]&lt;/strong&gt; Non è necessario spostare la sidebar prima del contenuto centrale. Lasciando la sidebar alla fine del template, basta inserire prima del richiamo della sidebar la seguente riga:&lt;/p&gt;&#xA;&lt;div class=&#34;highlight&#34;&gt;&lt;pre tabindex=&#34;0&#34; class=&#34;chroma&#34;&gt;&lt;code class=&#34;language-php&#34; data-lang=&#34;php&#34;&gt;&lt;span class=&#34;line&#34;&gt;&lt;span class=&#34;cl&#34;&gt;&lt;span class=&#34;o&#34;&gt;&amp;lt;?&lt;/span&gt;&lt;span class=&#34;nx&#34;&gt;php&lt;/span&gt; &lt;span class=&#34;nv&#34;&gt;$post&lt;/span&gt; &lt;span class=&#34;o&#34;&gt;=&lt;/span&gt; &lt;span class=&#34;nv&#34;&gt;$posts&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;[&lt;/span&gt;&lt;span class=&#34;mi&#34;&gt;0&lt;/span&gt;&lt;span class=&#34;p&#34;&gt;];&lt;/span&gt; &lt;span class=&#34;cp&#34;&gt;?&amp;gt;&lt;/span&gt;&lt;span class=&#34;err&#34;&gt;&#xA;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;p&gt;che azzera le precedenti query.&lt;/p&gt;&#xA;&lt;p&gt;L&#39;articolo &lt;a href=&#34;https://www.aldolat.it/posts/2009/un-menu-laterale-con-le-sottopagine/&#34;&gt;Un menu laterale con le sottopagine&lt;/a&gt; è uno scritto di &lt;a href=&#34;https://www.aldolat.it/&#34;&gt;aldolat.it&lt;/a&gt;. Rispettane le &lt;a href=&#34;https://www.aldolat.it/info/#licenza&#34;&gt;condizioni di licenza&lt;/a&gt;.&lt;/p&gt;</content:encoded>
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