php-doc-en/reference/network/functions/getprotobyname.xml
2003-12-15 16:55:22 +00:00

66 lines
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XML

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
<!-- splitted from ./en/functions/network.xml, last change in rev 1.2 -->
<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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