php-doc-en/reference/sockets/functions/socket-shutdown.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.socket-shutdown">
 <refnamediv>
  <refname>socket_shutdown</refname>
  <refpurpose>Shuts down a socket for receiving, sending, or both</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>socket_shutdown</methodname>
   <methodparam><type>resource</type><parameter>socket</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>how</parameter><initializer>2</initializer></methodparam>
  </methodsynopsis>
  <para>
   The <function>socket_shutdown</function> function allows you to stop
   incoming, outgoing or all data (the default) from being sent through the
   <parameter>socket</parameter>
  </para>
  <note>
   <para>
    The associated buffer, or buffers, may or may not be emptied.
   </para>
  </note>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>socket</parameter></term>
     <listitem>
      <para>
       A valid socket resource created with <function>socket_create</function>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>how</parameter></term>
     <listitem>
      <para>
       The value of <parameter>how</parameter> can be one of the following:
       <table>
        <title>possible values for <parameter>how</parameter></title>
        <tgroup cols="2">
         <tbody>
          <row>
           <entry><literal>0</literal></entry>
           <entry>
            Shutdown socket reading
           </entry>
          </row>
          <row>
           <entry><literal>1</literal></entry>
           <entry>
            Shutdown socket writing
           </entry>
          </row>
          <row>
           <entry><literal>2</literal></entry>
           <entry>
            Shutdown socket reading and writing
           </entry>
          </row>
         </tbody>
        </tgroup>
       </table>
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

</refentry>

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