file-exists.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- splitted from ./it/functions/filesystem.xml, last change in rev 1.15 -->
<!-- last change to 'file-exists' in en/ tree in rev 1.2 -->
<!-- EN-Revision: n/a Maintainer: cortesi Status: working -->
<!-- OLD-Revision: 1.134/EN.1.2 -->
  <refentry xml:id="function.file-exists" xmlns="http://docbook.org/ns/docbook">
   <refnamediv>
    <refname>file_exists</refname>
    <refpurpose>Controlla se un file o directory esiste</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Descrizione</title>
     <methodsynopsis>
      <type>bool</type><methodname>file_exists</methodname>
      <methodparam><type>string</type><parameter>filename</parameter></methodparam>
     </methodsynopsis>
    <simpara>
     Restituisce &true; se il file o la directory specificata da
     <parameter>filename</parameter> esiste; &false; altrimenti.
    </simpara>
    <para>
     Sui sistemi Windows utlizzare <filename>//computername/share/filename</filename> oppure
     <filename>\\computername\share\filename</filename> per verificare file su dischi condivisi.
    </para>
    <para>
     <example>
      <title>Verificare l'esistenza di un file</title>
      <programlisting role="php"> 
<![CDATA[ 
<?php 
$filename = '/path/to/foo.txt'; 
 
if (file_exists($filename)) { 
    echo "il file $filename esiste"; 
} else { 
    echo "Il file $filename non esiste"; 
} 
?> 
]]> 
      </programlisting> 
     </example> 
    </para> 
 
    &note.clearstatcache; 
 
    &tip.fopen-wrapper.stat; 
 
    <para> 
     Vedere anche <function>is_readable</function>, <function>is_writable</function>, 
     <function>is_file</function> e <function>file</function>. 
    </para>
   </refsect1>
  </refentry>

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