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219 lines
7.1 KiB
XML
219 lines
7.1 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<section xml:id="outcontrol.configuration" xmlns="http://docbook.org/ns/docbook">
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&reftitle.runtime;
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&extension.runtime;
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<para>
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<table>
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<title>Output Control configuration options</title>
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<tgroup cols="4">
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<thead>
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<row>
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<entry>&Name;</entry>
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<entry>&Default;</entry>
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<entry>&Changeable;</entry>
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<entry>&Changelog;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry><link linkend="ini.output-buffering">output_buffering</link></entry>
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<entry><literal>"0"</literal></entry>
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<entry><constant>INI_PERDIR</constant></entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.output-handler">output_handler</link></entry>
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<entry>&null;</entry>
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<entry><constant>INI_PERDIR</constant></entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.implicit-flush">implicit_flush</link></entry>
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<entry><literal>"0"</literal></entry>
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<entry><constant>INI_ALL</constant></entry>
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<entry></entry>
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</row>
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<row>
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<entry><link linkend="ini.url-rewriter.tags">url_rewriter.tags</link></entry>
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<entry><literal>"form="</literal></entry>
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<entry><constant>INI_ALL</constant></entry>
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<entry>
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As of PHP 7.1.0, this INI setting only affects
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<function>output_add_rewrite_var</function>.
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Prior to PHP 7.1.0, this INI setting enabled transparent session id support
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(see <link linkend="ini.session.trans-sid-tags">session.trans_sid_tags</link>).
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</entry>
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</row>
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<row>
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<entry><link linkend="ini.url-rewriter.hosts">url_rewriter.hosts</link></entry>
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<entry><literal>$_SERVER['HTTP_HOST']</literal> is used as default.</entry>
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<entry><constant>INI_ALL</constant></entry>
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<entry>Available as of PHP 7.1.0</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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&ini.php.constants;
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</para>
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&ini.descriptions.title;
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<para>
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<variablelist>
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<varlistentry xml:id="ini.output-buffering">
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<term>
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<parameter>output_buffering</parameter>
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<type>bool</type>/<type>int</type>
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</term>
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<listitem>
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<para>
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Output buffering for all files can be enabled by setting this directive
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to <literal>"On"</literal>.
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To limit the size of the buffer, a number/quantity corresponding to the
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maximum numbers of bytes allowed can be used instead of
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<literal>"On"</literal> for the value of this directive.
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For example <literal>output_buffering=4096</literal>.
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This directive is always Off in PHP-CLI.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="ini.output-handler">
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<term>
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<parameter>output_handler</parameter>
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<type>string</type>
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</term>
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<listitem>
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<para>
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The output of scripts can be redirected to a function.
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For example setting <literal>output_handler</literal>
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to <function>mb_output_handler</function>, character encoding will be
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transparently converted to the specified encoding.
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Setting any output handler automatically turns on output buffering.
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</para>
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<note>
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<para>
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<function>mb_output_handler</function> and
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<function>ob_iconv_handler</function> cannot be used together
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and <function>ob_gzhandler</function> and
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<link linkend="ini.zlib.output-compression">zlib.output_compression</link>
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cannot be used with any of the following:
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<function>mb_output_handler</function>,
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<function>ob_gzhandler</function>,
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<link linkend="ini.zlib.output-compression">zlib.output_compression</link>,
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the 'URL-Rewriter' handler
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(see <link linkend="ini.session.use-trans-sid">session.use_trans_sid</link>
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and <function>output_add_rewrite_var</function>).
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</para>
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</note>
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<note>
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<para>
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Only built-in functions can be used with this directive.
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For user defined functions, use <function>ob_start</function>.
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</para>
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</note>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="ini.implicit-flush">
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<term>
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<parameter>implicit_flush</parameter>
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<type>bool</type>
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</term>
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<listitem>
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<para>
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&false; by default. Changing this to &true; tells PHP to tell the
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output layer to flush itself automatically after every output block.
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This is equivalent to calling the PHP function
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<function>flush</function> after each and every call to
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any function producing output (such as
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<function>print</function> or <function>echo</function>)
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and each and every HTML block.
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</para>
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<para>
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When using PHP within an web environment, turning
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this option on has serious performance implications and is generally
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recommended for debugging purposes only. This value defaults to
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&true; when operating under the <literal>CLI SAPI</literal>.
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</para>
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<para>
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See also <function>ob_implicit_flush</function>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="ini.url-rewriter.tags">
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<term>
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<parameter>url_rewriter.tags</parameter>
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<type>string</type>
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</term>
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<listitem>
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<simpara>
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<literal>url_rewriter.tags</literal> specifies HTML tags and attributes
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in which URLs are rewritten by <function>output_add_rewrite_var</function> values.
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Defaults to <literal>"form="</literal>.
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</simpara>
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<simpara>
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Adding <literal>"form="</literal> or any <literal>form</literal> attribute
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will add a hidden <literal>input</literal> element to the <literal>form</literal>
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with a name and value attribute for each name-value pair passed to
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<function>output_add_rewrite_var</function>.
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</simpara>
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<caution>
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<simpara>
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Adding the same tag more than once to <literal>url_rewriter.tags</literal>
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will only use the first occurrence during the URL rewriting process.
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</simpara>
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</caution>
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<note>
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<simpara>
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Prior to PHP 7.1.0, <link linkend="ini.url-rewriter.tags">url_rewriter.tags</link>
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was used to specify <link linkend="ini.session.trans-sid-tags">session.trans_sid_tags</link>.
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</simpara>
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</note>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="ini.url-rewriter.hosts">
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<term>
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<parameter>url_rewriter.hosts</parameter>
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<type>string</type>
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</term>
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<listitem>
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<simpara>
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<literal>url_rewriter.hosts</literal> specifies which hosts are
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rewritten to include <function>output_add_rewrite_var</function> values.
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Defaults to <literal>$_SERVER['HTTP_HOST']</literal>.
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Multiple hosts can be specified by a comma separated list
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that does not include spaces.
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For example <literal>"php.net,wiki.php.net,bugs.php.net"</literal>.
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</simpara>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</section>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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