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	<title>Programmazione Web &#187; php upload file</title>
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		<title>Classe PHP per l&#8217;upload dei files</title>
		<link>http://www.programmazione-web.com/classe-php-upload-file-multipli.php</link>
		<comments>http://www.programmazione-web.com/classe-php-upload-file-multipli.php#comments</comments>
		<pubDate>Fri, 14 Mar 2008 13:45:41 +0000</pubDate>
		<dc:creator>neryo</dc:creator>
				<category><![CDATA[Classi e librerie]]></category>
		<category><![CDATA[Open-source]]></category>
		<category><![CDATA[Programmare Php]]></category>
		<category><![CDATA[RAD]]></category>
		<category><![CDATA[Tips & Tricks]]></category>
		<category><![CDATA[classe uploading file.]]></category>
		<category><![CDATA[php thumbnails]]></category>
		<category><![CDATA[php upload file]]></category>
		<category><![CDATA[php upload multipli]]></category>
		<category><![CDATA[upload immaigni con php]]></category>

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		<description><![CDATA[Classe PHP per l&#8217;upload dei files
class.upload.php è una classe in php giunta alla versione 0.25, rilascia sotto la licenza GNU V2, che permette l&#8217;upload dei files e la manipolazione delle immagini in maniera molto semplice e potente.
Infatti ci da la possibilità di creare velocemente thumbnails delle immagini uploadate, consentendo inoltre di aggiungere semplicemente label ed [...]]]></description>
			<content:encoded><![CDATA[<p><strong>Classe PHP per l&#8217;upload dei files</strong></p>
<p>class.upload.php è una classe in php giunta alla versione 0.25, rilascia sotto la licenza GNU V2, che permette l&#8217;upload dei files e la manipolazione delle immagini in maniera molto semplice e potente.<br />
Infatti ci da la possibilità di creare velocemente thumbnails delle immagini uploadate, consentendo inoltre di aggiungere semplicemente label ed effetti alle immagini,  semplificandoci notevolmente l&#8217;implementazione delle nostre photogallery.</p>
<p>Di seguito riportati  3 esempi di casistiche implementative:</p>
<div class="dean_ch" style="white-space: wrap;">
<ol>
<li class="li1">
<div class="de1"><span class="re0">$foo</span> = <span class="kw2">new</span> Upload<span class="br0">&#40;</span><span class="re0">$_FILES</span><span class="br0">&#91;</span><span class="st0">&#8216;form_field&#8217;</span><span class="br0">&#93;</span><span class="br0">&#41;</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="kw1">if</span> <span class="br0">&#40;</span><span class="re0">$foo</span>-&gt;<span class="me1">uploaded</span><span class="br0">&#41;</span> <span class="br0">&#123;</span></div>
</li>
<li class="li1">
<div class="de1"><span class="co1">// save uploaded image with no changes</span></div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">Process</span><span class="br0">&#40;</span><span class="st0">&#8216;/home/user/files/&#8217;</span><span class="br0">&#41;</span>;</div>
</li>
<li class="li2">
<div class="de2">&nbsp;</div>
</li>
<li class="li1">
<div class="de1"><span class="kw1">if</span> <span class="br0">&#40;</span><span class="re0">$foo</span>-&gt;<span class="me1">processed</span><span class="br0">&#41;</span> <span class="br0">&#123;</span></div>
</li>
<li class="li1">
<div class="de1">&nbsp; &nbsp; &nbsp; &nbsp; <a href="http://www.php.net/echo"><span class="kw3">echo</span></a> <span class="st0">&#8216;original image copied&#8217;</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="br0">&#125;</span> <span class="kw1">else</span> <span class="br0">&#123;</span></div>
</li>
<li class="li1">
<div class="de1">&nbsp; &nbsp; &nbsp; &nbsp; <a href="http://www.php.net/echo"><span class="kw3">echo</span></a> <span class="st0">&#8216;error : &#8216;</span> . <span class="re0">$foo</span>-&gt;<span class="me1">error</span>;</div>
</li>
<li class="li2">
<div class="de2"><span class="br0">&#125;</span></div>
</li>
<li class="li1">
<div class="de1">&nbsp;</div>
</li>
<li class="li1">
<div class="de1"><span class="co1">// save uploaded image with a new name</span></div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">file_new_name_body</span> = <span class="st0">&#8216;foo&#8217;</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">Process</span><span class="br0">&#40;</span><span class="st0">&#8216;/home/user/files/&#8217;</span><span class="br0">&#41;</span>;</div>
</li>
<li class="li2">
<div class="de2"><span class="kw1">if</span> <span class="br0">&#40;</span><span class="re0">$foo</span>-&gt;<span class="me1">processed</span><span class="br0">&#41;</span> <span class="br0">&#123;</span></div>
</li>
<li class="li1">
<div class="de1">&nbsp; &nbsp; &nbsp; &nbsp; <a href="http://www.php.net/echo"><span class="kw3">echo</span></a> <span class="st0">&#8216;image renamed &quot;foo&quot; copied&#8217;</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="br0">&#125;</span> <span class="kw1">else</span> <span class="br0">&#123;</span></div>
</li>
<li class="li1">
<div class="de1">&nbsp; &nbsp; &nbsp; &nbsp; <a href="http://www.php.net/echo"><span class="kw3">echo</span></a> <span class="st0">&#8216;error : &#8216;</span> . <span class="re0">$foo</span>-&gt;<span class="me1">error</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="br0">&#125;</span></div>
</li>
<li class="li2">
<div class="de2">&nbsp;</div>
</li>
<li class="li1">
<div class="de1"><span class="co1">// save uploaded image with a new name,</span></div>
</li>
<li class="li1">
<div class="de1"><span class="co1">// resized to 100px wide</span></div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">file_new_name_body</span> = <span class="st0">&#8216;image_resized&#8217;</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">image_resize</span> = <span class="kw2">true</span>;</div>
</li>
<li class="li2">
<div class="de2"><span class="re0">$foo</span>-&gt;<span class="me1">image_convert</span> = gif;</div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">image_x</span> = <span class="nu0">100</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">image_ratio_y</span> = <span class="kw2">true</span>;</div>
</li>
<li class="li1">
<div class="de1"><span class="re0">$foo</span>-&gt;<span class="me1">Process</span><span class="br0">&#40;</span><span class="st0">&#8216;/home/user/files/&#8217;</span><span class="br0">&#41;</span>;</div>
</li>
<li class="li1">
<div class="de1">&nbsp;</div>
</li>
<li class="li2">
<div class="de2">&nbsp;<span class="kw1">if</span> <span class="br0">&#40;</span><span class="re0">$foo</span>-&gt;<span class="me1">processed</span><span class="br0">&#41;</span> <span class="br0">&#123;</span></div>
</li>
<li class="li1">
<div class="de1">&nbsp; &nbsp; &nbsp; &nbsp; <a href="http://www.php.net/echo"><span class="kw3">echo</span></a> <span class="st0">&#8216;image renamed, resized x=100 and converted to GIF&#8217;</span>;</div>
</li>
<li class="li1">
<div class="de1">&nbsp; &nbsp; &nbsp; &nbsp; <span class="re0">$foo</span>-&gt;<span class="me1">Clean</span><span class="br0">&#40;</span><span class="br0">&#41;</span>;</div>
</li>
<li class="li1">
<div class="de1">&nbsp;<span class="br0">&#125;</span> <span class="kw1">else</span> <span class="br0">&#123;</span></div>
</li>
<li class="li1">
<div class="de1">&nbsp; &nbsp; &nbsp; &nbsp; <a href="http://www.php.net/echo"><span class="kw3">echo</span></a> <span class="st0">&#8216;error : &#8216;</span> . <span class="re0">$foo</span>-&gt;<span class="me1">error</span>;</div>
</li>
<li class="li2">
<div class="de2">&nbsp;<span class="br0">&#125;</span></div>
</li>
<li class="li1">
<div class="de1"><span class="br0">&#125;</span></div>
</li>
</ol>
</div>
<p>Questo piccolo esempio di codice ci mostra come:</p>
<ul>
<li>copiare un file in upload sul nostro server senza effettuare alcuna modifica all&#8217;immagine.</li>
<li>copiare il file uploadandolo sul server rinominandolo in  &#8216;foo&#8217;.</li>
<li>copiare il file in upload sul nostro server, effettuando un ridimensionamento x=100, y=auto, e convertendolo in formato GIF.</li>
</ul>
<p><strong>Perchè usare questa classe?</strong></p>
<ul>
<li>con questa classe puoi effetture upload multipli, conversioni e ridimensionamenti in modo semplice e veloce.</li>
<li>puoi ridimensionare la dimensione delle immagini, mantenendo o no le proporzioni.</li>
<li>puoi effetturare il ridimensionamento solo se l&#8217;immagine non rispecchia le dimensioni imposte.</li>
<li>puoi aggiungere effetti all&#8217;immagini tipo bordi, riflessi, aggiungere etichette ecc..</li>
<li>è semplice da usare ma allo stesso tempo è molto potente e flessibile.</li>
<li>è ben documentata.</li>
<li>è possibile avere un controllo maggiore, utilizzando le variabili restituite durante e alla fine dei processi.</li>
<li>il report degli errori è molto semplice e completo, consente quindi un buon debug degli script.</li>
<li>è molto utilizzata su Internet, quindi è facile ottenere supporto.</li>
<li>è libera e gratuita.</li>
</ul>
<p><strong>Dove è possibile scaricarla:</strong></p>
<p><a href="http://www.verot.net/php_class_upload_download.htm" title="php class upload download" target="_blank">http://www.verot.net/php_class_upload_download.htm</a><a href="http://www.hotscripts.com/Detailed/45364.html" title="php class upload download" target="_blank"><br />
http://www.hotscripts.com/Detailed/45364.html</a><a href="http://freshmeat.net/projects/class_upload_php/" target="_new"><br />
</a><a href="http://www.phpclasses.org/browse/package/2181.html" title="php class upload download" target="_blank"> http://www.phpclasses.org/browse/package/2181.html</a><a href="http://freshmeat.net/projects/class_upload_php/" target="_new"><br />
</a><a href="http://freshmeat.net/projects/class_upload_php/" title="php class upload download" target="_blank"> http://freshmeat.net/projects/class_upload_php/</a><a href="http://freshmeat.net/projects/class_upload_php/" target="_new"><br />
</a><br />
Se trovi di meglio o classi analoghe, o se ritieni utile questo tutorial lascia un commento! grazie <img src='http://www.programmazione-web.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
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