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<title>XML Tag Mapping Example</title>
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<h2 class="title">XML Tag Mapping Example</h2>
<p class="para">
<div class="example" id="example-6746">
<p><strong>Example #1 Map XML to HTML</strong></p>
<div class="example-contents"><p>
This example maps tags in an XML document directly to HTML
tags. Elements not found in the "map array" are ignored. Of
course, this example will only work with a specific XML
document type.
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<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$file </span><span style="color: #007700">= </span><span style="color: #DD0000">"data.xml"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$map_array </span><span style="color: #007700">= array(<br /> </span><span style="color: #DD0000">"BOLD" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"B"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"EMPHASIS" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"I"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"LITERAL" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"TT"<br /></span><span style="color: #007700">);<br /><br />function </span><span style="color: #0000BB">startElement</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">, </span><span style="color: #0000BB">$name</span><span style="color: #007700">, </span><span style="color: #0000BB">$attrs</span><span style="color: #007700">) <br />{<br /> global </span><span style="color: #0000BB">$map_array</span><span style="color: #007700">;<br /> if (isset(</span><span style="color: #0000BB">$map_array</span><span style="color: #007700">[</span><span style="color: #0000BB">$name</span><span style="color: #007700">])) {<br /> echo </span><span style="color: #DD0000">"<</span><span style="color: #0000BB">$map_array</span><span style="color: #007700">[</span><span style="color: #0000BB">$name</span><span style="color: #007700">]</span><span style="color: #DD0000">>"</span><span style="color: #007700">;<br /> }<br />}<br /><br />function </span><span style="color: #0000BB">endElement</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">, </span><span style="color: #0000BB">$name</span><span style="color: #007700">) <br />{<br /> global </span><span style="color: #0000BB">$map_array</span><span style="color: #007700">;<br /> if (isset(</span><span style="color: #0000BB">$map_array</span><span style="color: #007700">[</span><span style="color: #0000BB">$name</span><span style="color: #007700">])) {<br /> echo </span><span style="color: #DD0000">"</</span><span style="color: #0000BB">$map_array</span><span style="color: #007700">[</span><span style="color: #0000BB">$name</span><span style="color: #007700">]</span><span style="color: #DD0000">>"</span><span style="color: #007700">;<br /> }<br />}<br /><br />function </span><span style="color: #0000BB">characterData</span><span style="color: #007700">(</span><span style="color: #0000BB">$parser</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">) <br />{<br /> echo </span><span style="color: #0000BB">$data</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">$xml_parser </span><span style="color: #007700">= </span><span style="color: #0000BB">xml_parser_create</span><span style="color: #007700">();<br /></span><span style="color: #FF8000">// use case-folding so we are sure to find the tag in $map_array<br /></span><span style="color: #0000BB">xml_parser_set_option</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">, </span><span style="color: #0000BB">XML_OPTION_CASE_FOLDING</span><span style="color: #007700">, </span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">xml_set_element_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">, </span><span style="color: #DD0000">"startElement"</span><span style="color: #007700">, </span><span style="color: #DD0000">"endElement"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">xml_set_character_data_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">, </span><span style="color: #DD0000">"characterData"</span><span style="color: #007700">);<br />if (!(</span><span style="color: #0000BB">$fp </span><span style="color: #007700">= </span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">, </span><span style="color: #DD0000">"r"</span><span style="color: #007700">))) {<br /> die(</span><span style="color: #DD0000">"could not open XML input"</span><span style="color: #007700">);<br />}<br /><br />while (</span><span style="color: #0000BB">$data </span><span style="color: #007700">= </span><span style="color: #0000BB">fread</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">4096</span><span style="color: #007700">)) {<br /> if (!</span><span style="color: #0000BB">xml_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">, </span><span style="color: #0000BB">feof</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">))) {<br /> die(</span><span style="color: #0000BB">sprintf</span><span style="color: #007700">(</span><span style="color: #DD0000">"XML error: %s at line %d"</span><span style="color: #007700">,<br /> </span><span style="color: #0000BB">xml_error_string</span><span style="color: #007700">(</span><span style="color: #0000BB">xml_get_error_code</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">)),<br /> </span><span style="color: #0000BB">xml_get_current_line_number</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">)));<br /> }<br />}<br /></span><span style="color: #0000BB">xml_parser_free</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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