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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<appendix xml:id="url.constants" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.constants;
&extension.constants;
<para>
The following constants are meant to be used with
<function>parse_url</function>.
</para>
<variablelist>
<varlistentry xml:id="constant.php-url-scheme">
<term>
<constant>PHP_URL_SCHEME</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-url-host">
<term>
<constant>PHP_URL_HOST</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Outputs the hostname of the URL parsed.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-url-port">
<term>
<constant>PHP_URL_PORT</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Outputs the port of the URL parsed.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-url-user">
<term>
<constant>PHP_URL_USER</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Outputs the user of the URL parsed.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-url-pass">
<term>
<constant>PHP_URL_PASS</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Outputs the password of the URL parsed.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-url-path">
<term>
<constant>PHP_URL_PATH</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Outputs the path of the URL parsed.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-url-query">
<term>
<constant>PHP_URL_QUERY</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Outputs the query string of the URL parsed.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-url-fragment">
<term>
<constant>PHP_URL_FRAGMENT</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Outputs the fragment (string after the hashmark #) of the URL parsed.
</simpara>
</listitem>
</varlistentry>
</variablelist>
<para>
The following constants are meant to be used with
<function>http_build_query</function>.
</para>
<variablelist>
<varlistentry xml:id="constant.php-query-rfc1738">
<term>
<constant>PHP_QUERY_RFC1738</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Encoding is performed per
<link xlink:href="&url.rfc;1738">RFC 1738</link> and the
<literal>application/x-www-form-urlencoded</literal> media type, which
implies that spaces are encoded as plus (<literal>+</literal>) signs.
</simpara>
</listitem>
</varlistentry>
<varlistentry xml:id="constant.php-query-rfc3986">
<term>
<constant>PHP_QUERY_RFC3986</constant>
(<type>int</type>)
</term>
<listitem>
<simpara>
Encoding is performed according to <link xlink:href="&url.rfc;3986">RFC 3986</link>,
and spaces will be percent encoded (<literal>%20</literal>).
</simpara>
</listitem>
</varlistentry>
</variablelist>
</appendix>
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