doc-en/reference/fileinfo/functions/finfo-file.xml at master · php/doc-en · GitHub

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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- Generated by xml_proto.php v2.3. Found in /scripts directory of phpdoc. -->
<refentry xml:id="function.finfo-file" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>finfo_file</refname>
  <refname>finfo::file</refname>
  <refpurpose>Return information about a file</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <para>&style.procedural;</para>
  <methodsynopsis>
   <type class="union"><type>string</type><type>false</type></type><methodname>finfo_file</methodname>
   <methodparam><type>finfo</type><parameter>finfo</parameter></methodparam>
   <methodparam><type>string</type><parameter>filename</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer><constant>FILEINFO_NONE</constant></initializer></methodparam>
   <methodparam choice="opt"><type class="union"><type>resource</type><type>null</type></type><parameter>context</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>
  <para>&style.oop;</para>
  <methodsynopsis role="finfo">
   <modifier>public</modifier> <type class="union"><type>string</type><type>false</type></type><methodname>finfo::file</methodname>
   <methodparam><type>string</type><parameter>filename</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer><constant>FILEINFO_NONE</constant></initializer></methodparam>
   <methodparam choice="opt"><type class="union"><type>resource</type><type>null</type></type><parameter>context</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>

  <para>
   This function is used to get information about a file.
  </para>

 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>finfo</parameter></term>
     <listitem>
      &fileinfo.parameters.finfo;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>filename</parameter></term>
     <listitem>
      <para>
       Name of a file to be checked.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>flags</parameter></term>
     <listitem>
      <para>
       One or disjunction of more <link linkend="fileinfo.constants">Fileinfo
       constants</link>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>context</parameter></term>
     <listitem>
      <para>
       For a description of <literal>contexts</literal>, refer to <xref linkend="ref.stream"/>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a textual description of the contents of the
   <parameter>filename</parameter> argument, or &false; if an error occurred.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     &fileinfo.changelog.finfo-object;
     <row>
      <entry>8.0.0</entry>
      <entry>
       <parameter>context</parameter> is nullable now.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>A <function>finfo_file</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type aka mimetype extension
foreach (glob("*") as $filename) {
    echo finfo_file($finfo, $filename) . "\n";
}
finfo_close($finfo);
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
text/html
image/gif
application/vnd.ms-excel
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>finfo_buffer</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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