php-doc-en/reference/mbstring/functions/mb-http-input.xml

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<refentry xml:id="function.mb-http-input" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>mb_http_input</refname>
  <refpurpose>Detect HTTP input character encoding</refpurpose>
 </refnamediv>
   
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type class="union"><type>array</type><type>string</type><type>false</type></type><methodname>mb_http_input</methodname>
   <methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>type</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>
  <simpara>
   Detects the HTTP input character encoding.
  </simpara>
 </refsect1>
 
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>type</parameter></term>
     <listitem>
      <para>
       Input string specifies the input type. 
       <literal>"G"</literal> for GET, <literal>"P"</literal> for POST, <literal>"C"</literal> for COOKIE, <literal>"S"</literal> for string, <literal>"L"</literal> for list, and
       <literal>"I"</literal> for the whole list (will return <type>array</type>). 
       If type is omitted, it returns the last input type processed. 
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   The character encoding name, as per the <parameter>type</parameter>,
   or an array of character encoding names, if <parameter>type</parameter> is <literal>"I"</literal>.
   If <function>mb_http_input</function> does not process specified
   HTTP input, it returns &false;.
  </para>
 </refsect1>

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

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

</refentry>
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