php-doc-en/reference/xml/functions/xml-set-processing-instruction-handler.xml
Torben Wilson af4410a7e1 Normalized the sgml-default-dtd-file local-variable line for those
still using this, after discussion on the phpdoc list.
From now on, manual.ced will need to be found at ~/.phpdoc/manual.ced.



git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@288721 c90b9560-bf6c-de11-be94-00142212c4b1
2009-09-25 07:04:39 +00:00

134 lines
4.1 KiB
XML

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision$ -->
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.xml-set-processing-instruction-handler">
<refnamediv>
<refname>xml_set_processing_instruction_handler</refname>
<refpurpose>
Set up processing instruction (PI) handler
</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>xml_set_processing_instruction_handler</methodname>
<methodparam><type>resource</type><parameter>parser</parameter></methodparam>
<methodparam><type>callback</type><parameter>handler</parameter></methodparam>
</methodsynopsis>
<para>
Sets the processing instruction (PI) handler function for the XML parser
<parameter>parser</parameter>.
</para>
<para>
A processing instruction has the following format:
<informalexample>
<programlisting>&lt;?<replaceable>target</replaceable>
<replaceable>data</replaceable>?>
</programlisting>
</informalexample>
You can put PHP code into such a tag, but be aware of one limitation: in
an XML PI, the PI end tag (<literal>?&gt;</literal>) can not be quoted,
so this character sequence should not appear in the PHP code you embed
with PIs in XML documents.If it does, the rest of the PHP code, as well
as the "real" PI end tag, will be treated as character data.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>parser</parameter></term>
<listitem>
<para>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>handler</parameter></term>
<listitem>
<para>
<parameter>handler</parameter> is a string containing the name of a
function that must exist when <function>xml_parse</function> is called
for <parameter>parser</parameter>.
</para>
<para>
The function named by <parameter>handler</parameter> must accept
three parameters:
<methodsynopsis>
<methodname><replaceable>handler</replaceable></methodname>
<methodparam><type>resource</type><parameter>parser</parameter></methodparam>
<methodparam><type>string</type><parameter>target</parameter></methodparam>
<methodparam><type>string</type><parameter>data</parameter></methodparam>
</methodsynopsis>
<variablelist>
<varlistentry>
<term><parameter>parser</parameter></term>
<listitem>
<simpara>
The first parameter, <replaceable>parser</replaceable>, is a
reference to the XML parser calling the handler.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>target</parameter></term>
<listitem>
<simpara>
The second parameter, <parameter>target</parameter>, contains the PI
target.
</simpara>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>data</parameter></term>
<listitem>
<simpara>
The third parameter, <parameter>data</parameter>, contains the PI
data.
</simpara>
</listitem>
</varlistentry>
</variablelist>
</para>
<para>
If a handler function is set to an empty string, or &false;, the handler
in question is disabled.
</para>
&note.func-callback;
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->