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<channel>
	<title>silzenna.net &#187; Tips</title>
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	<link>http://www.silzenna.net</link>
	<description>Sito personale di Silvio Zennaro, Dottore Magistrale in Informatica</description>
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		<title>Modificare la dimensione dei tag nel Tag Cloud di WordPress</title>
		<link>http://www.silzenna.net/2010/02/10/modificare-la-dimensione-dei-tag-nel-tag-cloud-di-wordpress/</link>
		<comments>http://www.silzenna.net/2010/02/10/modificare-la-dimensione-dei-tag-nel-tag-cloud-di-wordpress/#comments</comments>
		<pubDate>Wed, 10 Feb 2010 22:08:56 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[esempi php]]></category>
		<category><![CDATA[snippet]]></category>
		<category><![CDATA[tag cloud]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=364</guid>
		<description><![CDATA[Esempio di codice per modificare la dimensione dei tag all'interno del tag cloud di Wordpress.]]></description>
			<content:encoded><![CDATA[<div class="mceTemp mceIEcenter">
<dl id="attachment_318" class="wp-caption aligncenter" style="width: 293px;">
<dt class="wp-caption-dt"><a href="http://www.silzenna.net/wp-content/uploads/2009/08/logo-wordpress.gif"><img class="size-full wp-image-318" title="logo-wordpress" src="http://www.silzenna.net/wp-content/uploads/2009/08/logo-wordpress.gif" alt="WordPress" width="283" height="66" /></a></dt>
</dl>
</div>
<p>Il modo migliore per modificare la dimensione dei tag all&#8217;interno del tag cloud di WordPress è sicuramente quella di aprire il file functions.php e aggiungere in coda il seguente pezzo di codice:</p>
<pre name="code" class="php">
add_filter( "widget_tag_cloud_args", "my_tag_cloud_args" );
function my_tag_cloud_args($in){
  return "smallest=10&amp;largest=20&amp;number=25&amp;orderby=name&amp;unit=px";
}
</pre>
<p>Modificando il valore di ritorno della funzione a proprio piacimento sarà possibile personalizzare la visualizzazione dei tag all&#8217;interno del tag cloud</p>


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		</item>
		<item>
		<title>Mootools 1.2 in pillole: download del Cheat Sheet</title>
		<link>http://www.silzenna.net/2009/06/03/mootools-12-in-pillole-download-del-cheat-sheet/</link>
		<comments>http://www.silzenna.net/2009/06/03/mootools-12-in-pillole-download-del-cheat-sheet/#comments</comments>
		<pubDate>Wed, 03 Jun 2009 21:20:29 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Download]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[cheat sheet]]></category>
		<category><![CDATA[funzioni javascript]]></category>
		<category><![CDATA[Javascript]]></category>
		<category><![CDATA[mootools]]></category>
		<category><![CDATA[mootools cheat sheet]]></category>
		<category><![CDATA[mootools documentazione]]></category>
		<category><![CDATA[mootools framework]]></category>
		<category><![CDATA[Tips]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=289</guid>
		<description><![CDATA[Disponibile per il download il cheat sheet di mootools 1.2, che riassume la documentazione di base del framework javascript potente e modulare]]></description>
			<content:encoded><![CDATA[<div id="attachment_249" class="wp-caption alignleft" style="width: 194px"><img class="size-full wp-image-249" title="mootools" src="http://www.silzenna.net/wp-content/uploads/2009/05/mootools.png" alt="Mootools, compact modular javascript framework" width="184" height="46" /><p class="wp-caption-text">Mootools, compact modular javascript framework</p></div>
<p>Realizzato quasi un anno fa da <a title="Mootools 1.2 cheat sheet" href="http://mediavrog.net/blog/2008/06/11/mootools/mootools-12-cheat-sheet/" target="_blank" onclick="pageTracker._trackPageview('/outgoing/mediavrog.net/blog/2008/06/11/mootools/mootools-12-cheat-sheet/?referer=');">mediavrog.net</a>, poco dopo il rilascio della versione di Mootools 1.2, il cheat sheet del nostro affezionato framework javascript è uno strumento indispensabile da attaccare al muro del nostro ufficio o da tenere a portata di mano sulla nostra scrivania.</p>
<p>La documentazione del Cheat Sheet contiene le informazioni base degli oggetti:</p>
<ul>
<li>Core,</li>
<li>Native,</li>
<li>Class,</li>
<li>Element,</li>
<li>Utilities,</li>
<li>Request.</li>
</ul>
<p>Attualmente il cheat sheet in questione non contiene informazioni sulle classi FX e Plugin.</p>
<p>Il cheat sheet di mootools 1.2 è scaricabile in due formati:</p>
<ul>
<li>in versione standard per una miglior visualizzazione su schermo,</li>
<li>ad alto contrasto, ideale per la stampa;</li>
</ul>
<p>per il download è possibili utilizzare i seguenti link:</p>
Note: There is a file embedded within this post, please visit this post to download the file.


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		<title>jQuery o Mootools? Framework javascript a confronto!</title>
		<link>http://www.silzenna.net/2009/05/19/jquery-o-mootools-framework-javascript-a-confronto/</link>
		<comments>http://www.silzenna.net/2009/05/19/jquery-o-mootools-framework-javascript-a-confronto/#comments</comments>
		<pubDate>Tue, 19 May 2009 08:18:59 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[News]]></category>
		<category><![CDATA[Tips]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[framework]]></category>
		<category><![CDATA[framework javascript]]></category>
		<category><![CDATA[Javascript]]></category>
		<category><![CDATA[jquery]]></category>
		<category><![CDATA[jquery framework]]></category>
		<category><![CDATA[mootools]]></category>
		<category><![CDATA[mootools framework]]></category>
		<category><![CDATA[sviluppo web]]></category>
		<category><![CDATA[web 2.0]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=278</guid>
		<description><![CDATA[è stata pubblicata una guida (in inglese) che confronta punto per punto i due framework javascript jquery e mootools]]></description>
			<content:encoded><![CDATA[<div class="mceTemp mceIEcenter">
<dl id="attachment_279" class="wp-caption aligncenter" style="width: 410px;">
<dt class="wp-caption-dt"><img class="size-full wp-image-279" title="mootools_vs_jquery" src="http://www.silzenna.net/wp-content/uploads/2009/05/mootools_vs_jquery.jpg" alt="jQuery vs Mootools" width="400" height="80" /></dt>
</dl>
</div>
<p>Quale framework javascript scegliere tra jQuery e Mootools? Una domanda che molti sviluppatori web si pongono da tempo&#8230; La risposta non è sempre così immediata, ovviamente tutto dipende dalle vere esigenze di sviluppo richieste dall&#8217;applicazione sviluppata. Infatti le due librerie javascript sono state concepite con filosofie e obiettivi diversi.</p>
<p>In aiuto a questo dilemma è stata pubblicata una <a title="JQuery e Mootools a confronto" href="http://jqueryvsmootools.com/" target="_blank" onclick="pageTracker._trackPageview('/outgoing/jqueryvsmootools.com/?referer=');">guida</a> (in inglese) che confronta punto per punto i due framework javascript, evidenziandone le caratteristiche in termini di usabilità, estendibilità, funzionalità, riusabilità del codice e semplicità di utilizzo.</p>


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		<title>Codici HTML, numerici e esadecimali per rappresentare le valute</title>
		<link>http://www.silzenna.net/2009/04/14/codice-html-e-esadecimali-per-rappresentare-le-valute/</link>
		<comments>http://www.silzenna.net/2009/04/14/codice-html-e-esadecimali-per-rappresentare-le-valute/#comments</comments>
		<pubDate>Tue, 14 Apr 2009 19:12:03 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[codici esadecimali]]></category>
		<category><![CDATA[codici html]]></category>
		<category><![CDATA[html]]></category>
		<category><![CDATA[web 2.0]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=190</guid>
		<description><![CDATA[Vengono riportati alcuni codici numerici, esadecimali e html per rappresentare le valute all'interno delle proprie pagine web.]]></description>
			<content:encoded><![CDATA[<p>Qui di seguito vengono riportati alcuni codici numerici, esadecimali e html per rappresentare le valute all&#8217;interno delle proprie pagine web.</p>
<table style="margin-top: 10px;" border="1" cellspacing="0" cellpadding="4" width="100%">
<tbody>
<tr>
<th align="center">Display</th>
<th align="center">Friendly Code</th>
<th align="center">Numerical Code</th>
<th align="center">Hex Code</th>
<th align="center">Description</th>
</tr>
<tr class="grey">
<td align="center">¤</td>
<td align="center">&amp;curren;</td>
<td align="center">&amp;#164;</td>
<td align="center">&amp;#xA4;</td>
<td align="center">Generic Currency Symbol</td>
</tr>
<tr>
<td align="center">$</td>
<td align="center">$</td>
<td align="center">&amp;#36;</td>
<td align="center">&amp;#x24;</td>
<td align="center">Dollar Sign</td>
</tr>
<tr class="grey">
<td align="center">¢</td>
<td align="center">&amp;cent;</td>
<td align="center">&amp;#162;</td>
<td align="center">&amp;#xA2;</td>
<td align="center">Cent Sign</td>
</tr>
<tr>
<td align="center">£</td>
<td align="center">&amp;pound;</td>
<td align="center">&amp;#163;</td>
<td align="center">&amp;#xA3;</td>
<td align="center">Pound Sterling</td>
</tr>
<tr class="grey">
<td align="center">¥</td>
<td align="center">&amp;yen;</td>
<td align="center">&amp;#165;</td>
<td align="center">&amp;#xA4;</td>
<td align="center">Yen Symbol</td>
</tr>
<tr>
<td align="center">₣</td>
<td align="center"></td>
<td align="center">&amp;#8355;</td>
<td align="center">&amp;#x20A3;</td>
<td align="center">Franc Sign</td>
</tr>
<tr class="grey">
<td align="center">₤</td>
<td align="center"></td>
<td align="center">&amp;#8356;</td>
<td align="center">&amp;#x20A4;</td>
<td align="center">Lira Symbol</td>
</tr>
<tr>
<td align="center">₧</td>
<td align="center"></td>
<td align="center">&amp;#8359;</td>
<td align="center">&amp;#x20A7;</td>
<td align="center">Peseta Sign</td>
</tr>
<tr class="grey">
<td align="center">€</td>
<td align="center">&amp;euro;</td>
<td align="center">&amp;#128;</td>
<td align="center">&amp;#x80;</td>
<td align="center">Euro Symbol</td>
</tr>
<tr>
<td align="center">%</td>
<td align="center">%</td>
<td align="center">&amp;#37;</td>
<td align="center">&amp;#x25;</td>
<td align="center">Percent</td>
</tr>
<tr class="grey">
<td align="center">‰</td>
<td align="center"></td>
<td align="center">&amp;#137;</td>
<td align="center">&amp;#x2030;</td>
<td align="center">Per Million</td>
</tr>
</tbody>
</table>
<p>Alcuni codici di cui sopra fanno parte del set di caratteri UTF-8, è pertanto necessario esplicitamente inserire tale definizione nelle pagine web con la dichiarazione:</p>
<pre name="code" class="html">&lt;meta http-equiv="Content-Type" content="text/html;  charset=UTF-8"/&gt;</pre>


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		<title>Zend Framework: disabilitare layout e view rendering</title>
		<link>http://www.silzenna.net/2009/03/20/zend-framework-disabilitare-layout-e-view-rendering/</link>
		<comments>http://www.silzenna.net/2009/03/20/zend-framework-disabilitare-layout-e-view-rendering/#comments</comments>
		<pubDate>Fri, 20 Mar 2009 09:35:07 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[News]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[esempi php]]></category>
		<category><![CDATA[framework php]]></category>
		<category><![CDATA[mvc]]></category>
		<category><![CDATA[Tips]]></category>
		<category><![CDATA[zend framework]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=199</guid>
		<description><![CDATA[Per disabilitare il rendering di layout e view per un controller occorre includere le seguenti righe di codice all'interno del metodo preDispatch del controller stesso.]]></description>
			<content:encoded><![CDATA[<div class="mceTemp">
<dl id="attachment_138" class="wp-caption alignleft" style="width: 133px;">
<dt class="wp-caption-dt"><img class="size-full wp-image-138" title="Logo di Zend Framework" src="http://www.silzenna.net/wp-content/uploads/2009/02/logo_small.gif" alt="Zend Framework 1.7.4" width="123" height="23" /></dt>
</dl>
</div>
<p>Per disabilitare il rendering di layout e view per un controller occorre includere le seguenti righe di codice all&#8217;interno del metodo preDispatch del controller stesso:</p>
<pre name="code" class="php">public function preDispatch() {
  $this-&gt;_helper-&gt;layout()-&gt;disableLayout();
  $this-&gt;_helper-&gt;viewRenderer-&gt;setNoRender(true);
}</pre>
<p>Nel caso in cui si volesse disabilitare il rendering di layout e script all&#8217;interno di un solo action è necessario assicurarsi di non effettuare l&#8217;inclusione di cui al punto precedente e inserire le due righe di codice</p>
<pre name="code" class="php">public function myAction() {
  $db = new .... /* il codice da eseguire nell'action */
  $this-&gt;_helper-&gt;layout()-&gt;disableLayout();
  $this-&gt;_helper-&gt;viewRenderer-&gt;setNoRender(true);
}</pre>
<p>all&#8217;interno dell&#8217;action in questione.</p>
<p>Quest&#8217;ultimo caso può risultare molto utile nel caso si vogliano inserire degli action che rispondono ad invocazioni Ajax all&#8217;interno di uno stesso controller, senza dover necessariamente dover creare una struttura dedicata.</p>


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		<title>MAC: creare zip files da terminale</title>
		<link>http://www.silzenna.net/2009/03/08/mac-creare-zip-files-da-terminale/</link>
		<comments>http://www.silzenna.net/2009/03/08/mac-creare-zip-files-da-terminale/#comments</comments>
		<pubDate>Sun, 08 Mar 2009 19:51:57 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[mac]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=179</guid>
		<description><![CDATA[L'azione del finder comprimi crea fastidiosi file nascosti all'interno dell'archivio che fanno aumentare la dimensione finale, meglio il comando bash zip.]]></description>
			<content:encoded><![CDATA[<p>L&#8217;azione del finder &#8220;comprimi&#8221; viene utilizzata per la creazione di archivi zip. Purtroppo tale funzione crea fastidiosi file nascosti all&#8217;interno dell&#8217;archivio che oltretutto fanno aumentare la dimensione finale dell&#8217;archivio.<br />
Una valida alternativa consiste nel comando bash zip. Un valido e semplice esempio di utilizzo, lanciato dal terminale:</p>
<pre name="code" class="py">zip -r -q -9 Archivio.zip ./</pre>
<p>dove l&#8217;opzione -r viene utilizzata per comprimere ricorsivamente le directory, -q per eseguire la compressione in &#8220;quite mode&#8221; omettendo cioè messaggi e commenti e -9 indica il massimo livello di compressione possibile.</p>
<p>Per il processo inverso, ovvero per decomprimere un archivio da terminale, basta semplicemente invocare il comand <em>unzip</em>:</p>
<pre name="code" class="py">unzip -q Archivio.zip</pre>
<p>dove in questo caso l&#8217;opzione -q viene usata per omettere la stampa dei file estratti dall&#8217;archivio (utile in caso di archivi con molti file in quanto velocizza l&#8217;operazione di estrazione).</p>


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		<title>MAC: eseguire azioni automatiche all&#8217;avvio del terminale</title>
		<link>http://www.silzenna.net/2009/03/07/mac-eseguire-azioni-automatiche-allavvio-del-terminale/</link>
		<comments>http://www.silzenna.net/2009/03/07/mac-eseguire-azioni-automatiche-allavvio-del-terminale/#comments</comments>
		<pubDate>Sat, 07 Mar 2009 09:33:42 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[mac]]></category>
		<category><![CDATA[terminale]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=176</guid>
		<description><![CDATA[Per eseguire diversi comandi in maniera automatica all'avvio di un terminale su mac occorre aprire il terminale e creare il file .profile all'interno della propria home]]></description>
			<content:encoded><![CDATA[<p>Per eseguire diversi comandi in maniera automatica all&#8217;avvio di un terminale su mac occorre aprire il terminale e creare il file .profile all&#8217;interno della propria home:</p>
<pre name="code" class="py">touch .profile</pre>
<p>All&#8217;interno di tale file si dovranno inserire tutti i comandi (uno per riga) che si vuole vengano eseguiti all&#8217;avvio della shell bash. Nel nostro esempio, per definire il comando <strong>ll</strong> scriveremo:</p>
<pre name="code" class="py">echo 'alias ll="ls -lG"' &gt;&gt; .profile</pre>
<p>quindi riavviare il terminale per applicare le modifiche.</p>
<p>Nell&#8217;esempio l&#8217;opzione -l viene utilizzata per stampare i file uno per riga, mentre l&#8217;opzione -G per colorare l&#8217;output (simile all&#8217;opzione &#8211;color=auto della bash linux).</p>


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		<title>Rimuovere file temporanei ricorsivamente all&#8217;interno di una directory</title>
		<link>http://www.silzenna.net/2009/03/05/rimuovere-file-temporanei-ricorsivamente-allinterno-di-una-directory/</link>
		<comments>http://www.silzenna.net/2009/03/05/rimuovere-file-temporanei-ricorsivamente-allinterno-di-una-directory/#comments</comments>
		<pubDate>Thu, 05 Mar 2009 12:07:23 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[file temporanei]]></category>
		<category><![CDATA[find]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[mac]]></category>
		<category><![CDATA[rm]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=169</guid>
		<description><![CDATA[Comando per la rimozione dei file temporanei ricorsivamente all'interno di una cartella]]></description>
			<content:encoded><![CDATA[<p>Capita spesso che alcune applicazioni creino sul nostro computer fastidiosi file temporanei che molto spesso a nostra insaputa risultano utilissimi. Noi però non li sopportiamo e vorremmo cancellarli con facilità.</p>
<p>Come fare però per eliminare i file automaticamente in tutte le sottocartelle senza dover necessariamente percorrere ogni singola directory manualmente?</p>
<p>Questa riga di codice fa al caso nostro:</p>
<pre name="code" class="py">find ./ -name &quot;pattern_da_individuare&quot; -exec rm &quot;{}&quot; \; -print</pre>
<p>dove pattern_da_individuaredovrà essere sostituito con l&#8217;indicazione del file temporaneo da eliminare. Ad esempio, per eliminare tutti i file temporanei dil cui nome inizia con ._ (come per i file generati dal finder del mac alla (de)compressione di files o directory) eseguiremo:</p>
<pre name="code" class="py">find ./ -name &quot;._*&quot; -exec rm &quot;{}&quot; \; -print</pre>
<p>Nel caso volessimo estendere la ricera ed eliminare anche i file che iniziamo con .tmp eseguiremo:</p>
<pre name="code" class="py">find ./ -name &quot;._*&quot; -exec rm &quot;{}&quot; \; -print -or -name &quot;.tmp*&quot; -exec rm {} \; -print</pre>
<p>Il comando bash in questione è compatibile con i sistemi MAC e LINUX, eseguito direttamente da terminale.</p>


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		<title>MAC Tip: Finder, visualizzare i file nascosti</title>
		<link>http://www.silzenna.net/2009/03/04/mac-tip-finder-visualizzare-i-file-nascosti/</link>
		<comments>http://www.silzenna.net/2009/03/04/mac-tip-finder-visualizzare-i-file-nascosti/#comments</comments>
		<pubDate>Wed, 04 Mar 2009 22:36:24 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[bash]]></category>
		<category><![CDATA[finder]]></category>
		<category><![CDATA[mac]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=160</guid>
		<description><![CDATA[Mac Tips: Come visualizzare e nascondere i file nascosti nel finder]]></description>
			<content:encoded><![CDATA[<p style="text-align: center;"><img class="size-full wp-image-159 aligncenter" title="Apple Logo" src="http://www.silzenna.net/wp-content/uploads/2009/03/apple.png" alt="Apple Logo" width="106" height="127" /></p>
<p style="text-align: left;">Per abilitare la visualizzazione di file nascosti all&#8217;interno del finder, che di default è disabilitata, basta semplicemente aprire il terminale e digitare la seguente riga di codice:</p>
<pre name="code" class="py">defaults write com.apple.finder AppleShowAllFiles -bool true</pre>
<p>il terminale memorizzerà la nuova impostazione silenziosamente (nessun output dovrebbe comparire).</p>
<p>Ora, per visualizzare i file nascosti occorre semplicemente riavviare il finder.</p>
<p>Per effettuare l&#8217;operazione inversa, ovvero per nascondere i file nascosti dal finder occorre invece eseguire il seguente comando da terminale:</p>
<pre name="code" class="py">defaults write com.apple.finder AppleShowAllFiles -bool false</pre>
<p>quindi riavviare il finder per applicare la nuova impostazione</p>


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		<title>MySQL: ordinare i risultati di una select in maniera casuale</title>
		<link>http://www.silzenna.net/2009/02/01/mysql-ordinare-i-risultati-di-una-select-in-maniera-casuale/</link>
		<comments>http://www.silzenna.net/2009/02/01/mysql-ordinare-i-risultati-di-una-select-in-maniera-casuale/#comments</comments>
		<pubDate>Sun, 01 Feb 2009 12:46:08 +0000</pubDate>
		<dc:creator>silzenna</dc:creator>
				<category><![CDATA[News]]></category>
		<category><![CDATA[Web Development]]></category>
		<category><![CDATA[esempi mysql]]></category>
		<category><![CDATA[internet solutions]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[ordinamento]]></category>
		<category><![CDATA[ordinamento random]]></category>
		<category><![CDATA[Tips]]></category>

		<guid isPermaLink="false">http://www.silzenna.net/?p=129</guid>
		<description><![CDATA[Quando si vogliono effettuare delle interrogazioni ad un database MySQL e si desidera che i risultati ritornati seguano un ordinamento casuale, è possibile far eseguire questa operazione direttamente al motore di esecuzione delle query del database.]]></description>
			<content:encoded><![CDATA[<p>Quando si vogliono effettuare delle interrogazioni ad un database MySQL e si desidera che i risultati ritornati seguano un ordinamento casuale, è possibile far eseguire questa operazione direttamente al motore di esecuzione delle query del database.</p>
<p>Infatti basta aggiungere alla query in questione la direttiva <strong>ORDER BY RAND()</strong> che procede a mescolare i dati prima di ritornare i risultati:</p>
<pre name="code" class="sql">SELECT * FROM libreria ORDER BY RAND()</pre>
<p>Nell&#8217;esempio appena riportato, volendo ritornare tutti i titoli di delle canzoni all&#8217;interno di un&#8217;ipotetica libreria musicale, con l&#8217;aggiunta dell&#8217;ordinamento random i risultati verranno ritornati con un ordine casuale.</p>


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