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?>
<div id="example.xml-structure" class="section">
  <h2 class="title">Exemplo de Estrutura de Elemento XML</h2>
  <p class="para">
   Este primeiro exemplo exibe a estrutura dos elementos de início em
   um documento com indentação.
   <div class="example" id="example-1">
    <p><strong>Exemplo #1 Mostrar Estrutura de Elemento XML</strong></p>
    <div class="example-contents">
<div class="annotation-interactive phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$file </span><span style="color: #007700">= </span><span style="color: #DD0000">"examples/book.xml"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$depth </span><span style="color: #007700">= </span><span style="color: #0000BB">0</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">$attrs</span><span style="color: #007700">)<br />{<br />    global </span><span style="color: #0000BB">$depth</span><span style="color: #007700">;<br /><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">&lt; </span><span style="color: #0000BB">$depth</span><span style="color: #007700">; </span><span style="color: #0000BB">$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">"</span><span style="color: #0000BB">$name</span><span style="color: #DD0000">\n"</span><span style="color: #007700">;<br />    </span><span style="color: #0000BB">$depth</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">--;<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">?&gt;</span></span></code></div>
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