php-doc-en/reference/xslt/functions/xslt-set-object.xml

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<!-- $Revision: 1.6 $ -->
  <refentry id="function.xslt-set-object">
   <refnamediv>
    <refname>xslt_set_object</refname>
    <refpurpose>
     Sets the object in which to resolve callback functions
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
    <methodsynopsis>
     <type>bool</type><methodname>xslt_set_object</methodname>
     <methodparam><type>resource</type><parameter>processor</parameter></methodparam>
     <methodparam><type>object</type><parameter role="reference">obj</parameter></methodparam>
    </methodsynopsis>
    <para>
     This function allows to use the <parameter>processor</parameter> inside
     an <parameter>object</parameter> and to resolve all callback functions 
     in it.
    </para>
    <para>
     The callback functions can be declared with 
     <function>xml_set_sax_handlers</function>, 
     <function>xslt_set_scheme_handlers</function> or
     <function>xslt_set_error_handler</function> and are assumed to be methods
     of <parameter>object</parameter>.
    </para>
   </refsect1>
   <refsect1>
    &reftitle.examples;
    <example>
     <title>Using your own error handler as a method</title>
     <programlisting role="php">
<![CDATA[
<?php

class my_xslt_processor {
    
    var $_xh; // our XSLT processor
    
    function my_xslt_processor()
    {
        $this->_xh = xslt_create();

        // Make $this object the callback resolver
        xslt_set_object($this->_xh, $this);

        // Let's handle the errors
        xslt_set_error_handler($this->_xh, "my_xslt_error_handler");
    }

    function my_xslt_error_handler($handler, $errno, $level, $info)
    {
        // for now, let's just see the arguments
        var_dump(func_get_args());
    }
}

?>
]]>
     </programlisting>
    </example>
   </refsect1>
  </refentry>

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