<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
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  <refentry id="function.getprotobyname">
   <refnamediv>
    <refname>getprotobyname</refname>
    <refpurpose>
     Get protocol number associated with protocol name
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>int</type><methodname>getprotobyname</methodname>
      <methodparam><type>string</type><parameter>name</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>getprotobyname</function> returns the protocol number
     associated with the protocol <parameter>name</parameter> as per
     <filename>/etc/protocols</filename>.
    </para>
    <para>
     <example>
      <title><function>getprotobyname</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php
$protocol = 'tcp';
$get_prot = getprotobyname($protocol);
if ($get_prot == -1) {
    // if nothing found, returns -1
    echo 'Invalid Protocol';
} else {
    echo 'Protocol #' . $get_prot;
}
?>
]]>
      </programlisting>
     </example>
    </para>
    <para>
     See also: <function>getprotobynumber</function>.
    </para>
   </refsect1>
  </refentry>

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