php-doc-en/reference/network/functions/socket-set-timeout.xml

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  <refentry id="function.socket-set-timeout">
   <refnamediv>
    <refname>socket_set_timeout</refname>
    <refpurpose>Set timeout period on a socket</refpurpose> 
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>socket_set_timeout</methodname>
      <methodparam><type>resource</type><parameter>socket descriptor</parameter></methodparam>
      <methodparam><type>int</type><parameter>seconds</parameter></methodparam>
      <methodparam><type>int</type><parameter>microseconds</parameter></methodparam>
     </methodsynopsis>
    <para>
     Sets the timeout value on <parameter>socket descriptor</parameter>,
     expressed in the sum of <parameter>seconds</parameter> and
     <parameter>microseconds</parameter>.
     <example>
     <title><function>socket_set_timeout</function> Example</title>
       <programlisting role="php">
<![CDATA[
<?php
$fp = fsockopen("www.example.com", 80);
if(!$fp) {
    echo "Unable to open\n";
} else {
    fputs($fp,"GET / HTTP/1.0\n\n");
    $start = time();
    socket_set_timeout($fp, 2);
    $res = fread($fp, 2000);
    var_dump(socket_get_status($fp));
    fclose($fp);
    print $res;
}
?>
]]>
      </programlisting>
     </example>
    </para>
    <para>
     This function was previously called as
     <function>set_socket_timeout</function> but this usage is deprecated.
    </para>
    <para>
     See also: <function>fsockopen</function> and <function>fopen</function>.
    </para>
   </refsect1>
  </refentry>

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