php-doc-en/reference/network/functions/checkdnsrr.xml
Daniel Egeberg 96c9d88bad Converted to utf-8
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
2010-03-28 22:10:10 +00:00

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XML

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.checkdnsrr" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>checkdnsrr</refname>
<refpurpose>Check DNS records corresponding to a given Internet host name or IP address</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>checkdnsrr</methodname>
<methodparam><type>string</type><parameter>host</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>type</parameter><initializer>"MX"</initializer></methodparam>
</methodsynopsis>
<para>
Searches DNS for records of type <parameter>type</parameter>
corresponding to <parameter>host</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>host</parameter></term>
<listitem>
<para>
<parameter>host</parameter> may either be the IP address in
dotted-quad notation or the host name.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>type</parameter></term>
<listitem>
<para>
<parameter>type</parameter> may be any one of: A, MX, NS, SOA,
PTR, CNAME, AAAA, A6, SRV, NAPTR, TXT or ANY.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns &true; if any records are found; returns &false; if no records
were found or if an error occurred.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>5.3.0</entry>
<entry>
This function is now available on Windows platforms.
</entry>
</row>
<row>
<entry>5.2.4</entry>
<entry>
TXT <parameter>type</parameter> was added.
</entry>
</row>
<row>
<entry>5.0.0</entry>
<entry>
AAAA <parameter>type</parameter> was added.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<note>
<para>
For compatibility with Windows before this was implemented, then try the
<link xlink:href="&url.php.pear;">PEAR</link> class
<link xlink:href="&url.pear.package;Net_DNS">Net_DNS</link>.
</para>
</note>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>dns_get_record</function></member>
<member><function>getmxrr</function></member>
<member><function>gethostbyaddr</function></member>
<member><function>gethostbyname</function></member>
<member><function>gethostbynamel</function></member>
<member>the named(8) manual page</member>
</simplelist>
</para>
</refsect1>
</refentry>
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