php-doc-en/reference/spl/recursivedirectoryiterator/construct.xml

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<refentry xml:id="recursivedirectoryiterator.construct" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>RecursiveDirectoryIterator::__construct</refname>
  <refpurpose>Constructs a RecursiveDirectoryIterator</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <constructorsynopsis>
   <modifier>public</modifier> <methodname>RecursiveDirectoryIterator::__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</initializer></methodparam>
  </constructorsynopsis>
  <para>
   Constructs a <methodname>RecursiveDirectoryIterator</methodname>
   for the provided <parameter>directory</parameter>.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>directory</parameter></term>
     <listitem>
      <para>
       The path of the directory 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>8.0.0</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><classname>RecursiveDirectoryIterator</classname> example</title>
    <programlisting role="php">
<![CDATA[
<?php

$directory = '/tmp';

$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($directory));

$it->rewind();
while($it->valid()) {

    if (!$it->isDot()) {
        echo 'SubPathName: ' . $it->getSubPathName() . "\n";
        echo 'SubPath:     ' . $it->getSubPath() . "\n";
        echo 'Key:         ' . $it->key() . "\n\n";
    }

    $it->next();
}

?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
SubPathName: fruit/apple.xml
SubPath:     fruit
Key:         /tmp/fruit/apple.xml

SubPathName: stuff.xml
SubPath:     
Key:         /tmp/stuff.xml

SubPathName: veggies/carrot.xml
SubPath:     veggies
Key:         /tmp/veggies/carrot.xml

]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><methodname>FilesystemIterator::__construct</methodname></member>
    <member><methodname>RecursiveIteratorIterator::__construct</methodname></member>
    <member><link linkend="filesystemiterator.constants">FilesystemIterator predefined constants</link></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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