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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Examples</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="xml.encoding.html">Character Encoding</a></div> <div class="next" style="text-align: right; float: right;"><a href="example.xml-map-tags.html">XML Tag Mapping Example</a></div> <div class="up"><a href="book.xml.html">XML Parser</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div> <h1>Examples</h1><h2>Table of Contents</h2><ul class="chunklist chunklist_chapter"><li><a href="example.xml-map-tags.html">XML Tag Mapping Example</a></li><li><a href="example.xml-external-entity.html">XML External Entity Example</a></li></ul> <div id="example.xml-structure" class="section"> <h2 class="title">XML Element Structure Example</h2> <p class="para"> This first example displays the structure of the start elements in a document with indentation. <div class="example"> <p><b>Example #1 Show XML Element Structure</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$file </span><span style="color: #007700">= </span><span style="color: #DD0000">"data.xml"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$depth </span><span style="color: #007700">= array();<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">$attrs</span><span style="color: #007700">) <br />{<br /> global </span><span style="color: #0000BB">$depth</span><span style="color: #007700">;<br /> for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700">< </span><span style="color: #0000BB">$depth</span><span style="color: #007700">[</span><span style="color: #0000BB">$parser</span><span style="color: #007700">]; </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br /> echo </span><span style="color: #DD0000">" "</span><span style="color: #007700">;<br /> }<br /> echo </span><span style="color: #DD0000">"$name\n"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$depth</span><span style="color: #007700">[</span><span style="color: #0000BB">$parser</span><span style="color: #007700">]++;<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">$depth</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$depth</span><span style="color: #007700">[</span><span style="color: #0000BB">$parser</span><span style="color: #007700">]--;<br />}<br /><br /></span><span style="color: #0000BB">$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: #0000BB">xml_set_element_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml_parser</span><span style="color: #007700">, </span><span style="color: #DD0000">"startElement"</span><span style="color: #007700">, </span><span style="color: #DD0000">"endElement"</span><span style="color: #007700">);<br />if (!(</span><span style="color: #0000BB">$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> </div> </div> </p> </div> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="xml.encoding.html">Character Encoding</a></div> <div class="next" style="text-align: right; float: right;"><a href="example.xml-map-tags.html">XML Tag Mapping Example</a></div> <div class="up"><a href="book.xml.html">XML Parser</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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