construct.xml

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<refentry xml:id="filesystemiterator.construct" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>FilesystemIterator::__construct</refname>
  <refpurpose>Constructs a new filesystem iterator</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <constructorsynopsis role="FilesystemIterator">
   <modifier>public</modifier> <methodname>FilesystemIterator::__construct</methodname>
   <methodparam><type>string</type><parameter>directory</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer>FilesystemIterator::KEY_AS_PATHNAME | FilesystemIterator::CURRENT_AS_FILEINFO | FilesystemIterator::SKIP_DOTS</initializer></methodparam>
  </constructorsynopsis>
  <para>
   Constructs a new filesystem iterator from the <parameter>directory</parameter>.
  </para>

 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>directory</parameter></term>
     <listitem>
      <para>
       The path of the filesystem item to be iterated over.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>flags</parameter></term>
     <listitem>
      <para>
       Flags may be provided which will affect the behavior of some methods. 
       A list of the flags can found under <link linkend="filesystemiterator.constants">FilesystemIterator predefined constants</link>. 
       They can also be set later with <methodname>FilesystemIterator::setFlags</methodname>
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   Throws an <classname>UnexpectedValueException</classname>
   if the <parameter>directory</parameter> does not exist.
  </para>
  <para>
   Throws a <classname>ValueError</classname>
   if the <parameter>directory</parameter> is an empty string.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <para>
   <informaltable>
    <tgroup cols="2">
     <thead>
      <row>
       <entry>&Version;</entry>
       <entry>&Description;</entry>
      </row>
     </thead>
     <tbody>
      <row>
       <entry>8.2.0</entry>
       <entry>
        Prior to PHP 8.2.0, <constant>FilesystemIterator::SKIP_DOTS</constant> was
        always set and could not be removed.
       </entry>
      </row>
      <row>
       <entry>8.0.0</entry>
       <entry>
        Now throws a <classname>ValueError</classname> if
        <parameter>directory</parameter> is an empty string;
        previously it threw a <classname>RuntimeException</classname>.
       </entry>
      </row>
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>FilesystemIterator::__construct</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$it = new FilesystemIterator(dirname(__FILE__), FilesystemIterator::CURRENT_AS_FILEINFO);
foreach ($it as $fileinfo) {
    echo $fileinfo->getFilename() . "\n";
}
?>
]]>
    </programlisting>
    &example.outputs.82.similar;
    <screen>
<![CDATA[
.
..
apples.jpg
banana.jpg
example.php
]]>
    </screen>
    <para>Output of the above example prior to PHP 8.2.0 is similar to:</para>
    <screen>
<![CDATA[
apples.jpg
banana.jpg
example.php
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><methodname>FilesystemIterator::setFlags</methodname></member>
    <member><methodname>DirectoryIterator::__construct</methodname></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>
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