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?>
<div id="function.mysql-fetch-lengths" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mysql_fetch_lengths</h1>
  <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_fetch_lengths</span> &mdash; <span class="dc-title">Get the length of each output in a result</span></p>

 </div>

 <div id="function.mysql-fetch-lengths-refsynopsisdiv">
  <div class="warning"><strong class="warning">Avviso</strong>
   <p class="para">Questa enstensione  deprecata da PHP 5.5.0, e sarà rimossa in futuro.
Al suo posto, usare l&#039;estensione <a href="book.mysqli.php" class="link">MySQLi</a> o <a href="ref.pdo-mysql.php" class="link">PDO_MySQL</a>.
Vedere anche la guida <a href="mysqlinfo.api.choosing.php" class="link">MySQL: scelta dell&#039;API</a> e
le <a href="faq.databases.php#faq.databases.mysql.deprecated" class="link">FAQ relative</a> per ulteriori informazioni. 
Le alternative a questa funzione includono:</p>
   <ul class="simplelist">
    <li><span class="function"><a href="mysqli-result.lengths.php" class="function">mysqli_fetch_lengths()</a></span></li>
    <li><span class="methodname"><a href="pdostatement.getcolumnmeta.php" class="methodname">PDOStatement::getColumnMeta()</a></span></li>
   </ul>
  </div>
 </div>

 <div class="refsect1 description" id="refsect1-function.mysql-fetch-lengths-description">
  <h3 class="title">Descrizione</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>mysql_fetch_lengths</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span> <code class="parameter">$result</code></span>): <span class="type"><span class="type"><a href="language.types.array.php" class="type array">array</a></span>|<span class="type"><a href="language.types.singleton.php" class="type false">false</a></span></span></div>

  <p class="simpara">
   Returns an array that corresponds to the lengths of each field
   in the last row fetched by MySQL.
  </p>
  <p class="simpara">
   <span class="function"><strong>mysql_fetch_lengths()</strong></span> stores the lengths of
   each result column in the last row returned by
   <span class="function"><a href="function.mysql-fetch-row.php" class="function">mysql_fetch_row()</a></span>,
   <span class="function"><a href="function.mysql-fetch-assoc.php" class="function">mysql_fetch_assoc()</a></span>,
   <span class="function"><a href="function.mysql-fetch-array.php" class="function">mysql_fetch_array()</a></span>, and
   <span class="function"><a href="function.mysql-fetch-object.php" class="function">mysql_fetch_object()</a></span> in an array, starting at
   offset 0.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.mysql-fetch-lengths-parameters">
  <h3 class="title">Elenco dei parametri</h3>
  <dl>
   <dt><code class="parameter">
result</code></dt><dd><p class="para">The risultato <span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span> che
che viene calcolato. Questo risultato deriva dal una chiamata a
<span class="function"><a href="function.mysql-query.php" class="function">mysql_query()</a></span>.</p></dd>
  </dl>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.mysql-fetch-lengths-returnvalues">
  <h3 class="title">Valori restituiti</h3>
  <p class="simpara">
   An <span class="type"><a href="language.types.array.php" class="type array">array</a></span> of lengths on success o <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong> in caso di fallimento.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.mysql-fetch-lengths-examples">
  <h3 class="title">Esempi</h3>
  <div class="example" id="example-1">
   <p><strong>Example #1 A <span class="function"><strong>mysql_fetch_lengths()</strong></span> example</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$result </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT id,email FROM people WHERE id = '42'"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$result</span><span style="color: #007700">) {<br />    echo </span><span style="color: #DD0000">'Could not run query: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">mysql_error</span><span style="color: #007700">();<br />    exit;<br />}<br /></span><span style="color: #0000BB">$row     </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$lengths </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_fetch_lengths</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$lengths</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
   </div>

   <div class="example-contents"><p>Il precedente esempio visualizzerà
qualcosa simile a:</p></div>
   <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">Array
(
    [id] =&gt; 42
    [email] =&gt; user@example.com
)
Array
(
    [0] =&gt; 2
    [1] =&gt; 16
)</pre>
</div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.mysql-fetch-lengths-seealso">
  <h3 class="title">Vedere anche:</h3>
  <ul class="simplelist">
   <li><span class="function"><a href="function.mysql-field-len.php" class="function" rel="rdfs-seeAlso">mysql_field_len()</a> - Returns the length of the specified field</span></li>
   <li><span class="function"><a href="function.mysql-fetch-row.php" class="function" rel="rdfs-seeAlso">mysql_fetch_row()</a> - Get a result row as an enumerated array</span></li>
   <li><span class="function"><a href="function.strlen.php" class="function" rel="rdfs-seeAlso">strlen()</a> - Restituisce la lunghezza di una stringa</span></li>
  </ul>
 </div>

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