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Source of: /manual/en/example.xml-external-entity.php

<?php
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?>
<div id="example.xml-external-entity" class="section">
  <h2 class="title">XML External Entity Example</h2>
  <p class="para">
   This example highlights XML code.  It illustrates how to use an
   external entity reference handler to include and parse other
   documents, as well as how PIs can be processed, and a way of
   determining &quot;trust&quot; for PIs containing code.
  </p>
  <p class="para">
   XML documents that can be used for this example are found below
   the example (<var class="filename">xmltest.xml</var> and
   <var class="filename">xmltest2.xml</var>.)
  </p>
  <p class="para">
   </p><div class="example">
    <p><b>Example #1 External Entity Example</b></p>
    <div class="example-contents programlisting">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$file&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"xmltest.xml"</span><span style="color: #007700">;<br /><br />function&nbsp;</span><span style="color: #0000BB">trustedFile</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">)&nbsp;<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;only&nbsp;trust&nbsp;local&nbsp;files&nbsp;owned&nbsp;by&nbsp;ourselves<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">if&nbsp;(!</span><span style="color: #0000BB">preg_match</span><span style="color: #007700">(</span><span style="color: #DD0000">"@^([a-z]+)\:\/\/@i"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$file</span><span style="color: #007700">)&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&amp;&amp;&nbsp;</span><span style="color: #0000BB">fileowner</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">)&nbsp;==&nbsp;</span><span style="color: #0000BB">getmyuid</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">;<br />}<br /><br />function&nbsp;</span><span style="color: #0000BB">startElement</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$name</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$attribs</span><span style="color: #007700">)&nbsp;<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"&amp;lt;&lt;font&nbsp;color=\"#0000cc\"&gt;</span><span style="color: #0000BB">$name</span><span style="color: #DD0000">&lt;/font&gt;"</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(</span><span style="color: #0000BB">count</span><span style="color: #007700">(</span><span style="color: #0000BB">$attribs</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;foreach&nbsp;(</span><span style="color: #0000BB">$attribs&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$k&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">$v</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"&nbsp;&lt;font&nbsp;color=\"#009900\"&gt;</span><span style="color: #0000BB">$k</span><span style="color: #DD0000">&lt;/font&gt;=\"&lt;font&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;color=\"#990000\"&gt;</span><span style="color: #0000BB">$v</span><span style="color: #DD0000">&lt;/font&gt;\""</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"&amp;gt;"</span><span style="color: #007700">;<br />}<br /><br />function&nbsp;</span><span style="color: #0000BB">endElement</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$name</span><span style="color: #007700">)&nbsp;<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"&amp;lt;/&lt;font&nbsp;color=\"#0000cc\"&gt;</span><span style="color: #0000BB">$name</span><span style="color: #DD0000">&lt;/font&gt;&amp;gt;"</span><span style="color: #007700">;<br />}<br /><br />function&nbsp;</span><span style="color: #0000BB">characterData</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$data</span><span style="color: #007700">)&nbsp;<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">"&lt;b&gt;</span><span style="color: #0000BB">$data</span><span style="color: #DD0000">&lt;/b&gt;"</span><span style="color: #007700">;<br />}<br /><br />function&nbsp;</span><span style="color: #0000BB">PIHandler</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$target</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$data</span><span style="color: #007700">)&nbsp;<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;switch&nbsp;(</span><span style="color: #0000BB">strtolower</span><span style="color: #007700">(</span><span style="color: #0000BB">$target</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case&nbsp;</span><span style="color: #DD0000">"php"</span><span style="color: #007700">:<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;global&nbsp;</span><span style="color: #0000BB">$parser_file</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;If&nbsp;the&nbsp;parsed&nbsp;document&nbsp;is&nbsp;"trusted",&nbsp;we&nbsp;say&nbsp;it&nbsp;is&nbsp;safe<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//&nbsp;to&nbsp;execute&nbsp;PHP&nbsp;code&nbsp;inside&nbsp;it.&nbsp;&nbsp;If&nbsp;not,&nbsp;display&nbsp;the&nbsp;code<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;//&nbsp;instead.<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">trustedFile</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser_file</span><span style="color: #007700">[</span><span style="color: #0000BB">$parser</span><span style="color: #007700">]))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;eval(</span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;else&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Untrusted&nbsp;PHP&nbsp;code:&nbsp;&lt;i&gt;%s&lt;/i&gt;"</span><span style="color: #007700">,&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">htmlspecialchars</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">));<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />}<br /><br />function&nbsp;</span><span style="color: #0000BB">defaultHandler</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$data</span><span style="color: #007700">)&nbsp;<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(</span><span style="color: #0000BB">substr</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">1</span><span style="color: #007700">)&nbsp;==&nbsp;</span><span style="color: #DD0000">"&amp;"&nbsp;</span><span style="color: #007700">&amp;&amp;&nbsp;</span><span style="color: #0000BB">substr</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;-</span><span style="color: #0000BB">1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">1</span><span style="color: #007700">)&nbsp;==&nbsp;</span><span style="color: #DD0000">";"</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">'&lt;font&nbsp;color="#aa00aa"&gt;%s&lt;/font&gt;'</span><span style="color: #007700">,&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">htmlspecialchars</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">));<br />&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;else&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">'&lt;font&nbsp;size="-1"&gt;%s&lt;/font&gt;'</span><span style="color: #007700">,&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">htmlspecialchars</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">));<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />}<br /><br />function&nbsp;</span><span style="color: #0000BB">externalEntityRefHandler</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$openEntityNames</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$base</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$systemId</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$publicId</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(</span><span style="color: #0000BB">$systemId</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(!list(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$fp</span><span style="color: #007700">)&nbsp;=&nbsp;</span><span style="color: #0000BB">new_xml_parser</span><span style="color: #007700">(</span><span style="color: #0000BB">$systemId</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Could&nbsp;not&nbsp;open&nbsp;entity&nbsp;%s&nbsp;at&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$openEntityNames</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$systemId</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while&nbsp;(</span><span style="color: #0000BB">$data&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">fread</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">4096</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(!</span><span style="color: #0000BB">xml_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">feof</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">)))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"XML&nbsp;error:&nbsp;%s&nbsp;at&nbsp;line&nbsp;%d&nbsp;while&nbsp;parsing&nbsp;entity&nbsp;%s\n"</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_error_string</span><span style="color: #007700">(</span><span style="color: #0000BB">xml_get_error_code</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">)),<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_get_current_line_number</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">),&nbsp;</span><span style="color: #0000BB">$openEntityNames</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_parser_free</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_parser_free</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">;<br />}<br /><br />function&nbsp;</span><span style="color: #0000BB">new_xml_parser</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">)&nbsp;<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;global&nbsp;</span><span style="color: #0000BB">$parser_file</span><span style="color: #007700">;<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$xml_parser&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">xml_parser_create</span><span style="color: #007700">();<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_parser_set_option</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">XML_OPTION_CASE_FOLDING</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">1</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_set_element_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"startElement"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"endElement"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_set_character_data_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"characterData"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_set_processing_instruction_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"PIHandler"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_set_default_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"defaultHandler"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_set_external_entity_ref_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"externalEntityRefHandler"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(!(</span><span style="color: #0000BB">$fp&nbsp;</span><span style="color: #007700">=&nbsp;@</span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"r"</span><span style="color: #007700">)))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(!</span><span style="color: #0000BB">is_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser_file</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">settype</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser_file</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"array"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$parser_file</span><span style="color: #007700">[</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">]&nbsp;=&nbsp;</span><span style="color: #0000BB">$file</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;array(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br />}<br /><br />if&nbsp;(!(list(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$fp</span><span style="color: #007700">)&nbsp;=&nbsp;</span><span style="color: #0000BB">new_xml_parser</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">)))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;die(</span><span style="color: #DD0000">"could&nbsp;not&nbsp;open&nbsp;XML&nbsp;input"</span><span style="color: #007700">);<br />}<br /><br />echo&nbsp;</span><span style="color: #DD0000">"&lt;pre&gt;"</span><span style="color: #007700">;<br />while&nbsp;(</span><span style="color: #0000BB">$data&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">fread</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">4096</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(!</span><span style="color: #0000BB">xml_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$data</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">feof</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">)))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;die(</span><span style="color: #0000BB">sprintf</span><span style="color: #007700">(</span><span style="color: #DD0000">"XML&nbsp;error:&nbsp;%s&nbsp;at&nbsp;line&nbsp;%d\n"</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_error_string</span><span style="color: #007700">(</span><span style="color: #0000BB">xml_get_error_code</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">)),<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">xml_get_current_line_number</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">)));<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />}<br />echo&nbsp;</span><span style="color: #DD0000">"&lt;/pre&gt;"</span><span style="color: #007700">;<br />echo&nbsp;</span><span style="color: #DD0000">"parse&nbsp;complete\n"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">xml_parser_free</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div><p>
  </p>
  <p class="para">
   </p><div class="example">
    <p><b>Example #2 xmltest.xml</b></p>
    <div class="example-contents programlisting">
<div class="xmlcode"><pre class="xmlcode">&lt;?xml version=&#039;1.0&#039;?&gt;
&lt;!DOCTYPE chapter SYSTEM &quot;/just/a/test.dtd&quot; [
&lt;!ENTITY plainEntity &quot;FOO entity&quot;&gt;
&lt;!ENTITY systemEntity SYSTEM &quot;xmltest2.xml&quot;&gt;
]&gt;
&lt;chapter&gt;
 &lt;TITLE&gt;Title &amp;plainEntity;&lt;/TITLE&gt;
 &lt;para&gt;
  &lt;informaltable&gt;
   &lt;tgroup cols=&quot;3&quot;&gt;
    &lt;tbody&gt;
     &lt;row&gt;&lt;entry&gt;a1&lt;/entry&gt;&lt;entry morerows=&quot;1&quot;&gt;b1&lt;/entry&gt;&lt;entry&gt;c1&lt;/entry&gt;&lt;/row&gt;
     &lt;row&gt;&lt;entry&gt;a2&lt;/entry&gt;&lt;entry&gt;c2&lt;/entry&gt;&lt;/row&gt;
     &lt;row&gt;&lt;entry&gt;a3&lt;/entry&gt;&lt;entry&gt;b3&lt;/entry&gt;&lt;entry&gt;c3&lt;/entry&gt;&lt;/row&gt;
    &lt;/tbody&gt;
   &lt;/tgroup&gt;
  &lt;/informaltable&gt;
 &lt;/para&gt;
 &amp;systemEntity;
 &lt;section id=&quot;about&quot;&gt;
  &lt;title&gt;About this Document&lt;/title&gt;
  &lt;para&gt;
   &lt;!-- this is a comment --&gt;
   &lt;?php echo &#039;Hi!  This is PHP version &#039; . phpversion(); ?&gt;
  &lt;/para&gt;
 &lt;/section&gt;
&lt;/chapter&gt;</pre>
</div>
    </div>

   </div><p>
  </p>
  <p class="para">
   This file is included from <var class="filename">xmltest.xml</var>:
   </p><div class="example">
    <p><b>Example #3 xmltest2.xml</b></p>
    <div class="example-contents programlisting">
<div class="xmlcode"><pre class="xmlcode">&lt;?xml version=&quot;1.0&quot;?&gt;
&lt;!DOCTYPE foo [
&lt;!ENTITY testEnt &quot;test entity&quot;&gt;
]&gt;
&lt;foo&gt;
   &lt;element attrib=&quot;value&quot;/&gt;
   &amp;testEnt;
   &lt;?php echo &quot;This is some more PHP code being executed.&quot;; ?&gt;
&lt;/foo&gt;</pre>
</div>
    </div>

   </div><p>
  </p>
 </div><?php manual_footer(); ?>
 
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