function.domdocument-document-element.html
来自「php的帮助文档,涉及到PHP的案例和基本语法,以及实际应用内容」· HTML 代码 · 共 64 行
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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>Returns root element node</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="function.domdocument-doctype.html">DomDocument->doctype</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.domdocument-dump-file.html">DomDocument->dump_file</a></div> <div class="up"><a href="ref.domxml.html">DOM XML Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.domdocument-document-element" class="refentry"> <div class="refnamediv"> <h1 class="refname">DomDocument->document_element</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">DomDocument->document_element</span> — <span class="dc-title"> Returns root element node </span></p> </div> <div class="refsect1 unknown"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type"><a href="class.domelement.html" class="type domelement">domelement</a></span> <span class="methodname"><b><b>DomDocument->document_element</b></b></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> This function returns the root element node of a document. </p> <p class="para"> The following example returns just the element with name CHAPTER and prints it. The other node -- the comment -- is not returned. <div class="example"> <p><b>Example #1 Retrieving root element</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #007700">include(</span><span style="color: #DD0000">"example.inc"</span><span style="color: #007700">);<br /><br />if (!</span><span style="color: #0000BB">$dom </span><span style="color: #007700">= </span><span style="color: #0000BB">domxml_open_mem</span><span style="color: #007700">(</span><span style="color: #0000BB">$xmlstr</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"Error while parsing the document\n"</span><span style="color: #007700">;<br /> exit;<br />}<br /><br /></span><span style="color: #0000BB">$root </span><span style="color: #007700">= </span><span style="color: #0000BB">$dom</span><span style="color: #007700">-></span><span style="color: #0000BB">document_element</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$root</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>domelement Object( [type] => 1 [tagname] => chapter [0] => 6 [1] => 137960648)</pre></div> </pre></div> </div> </p> </div> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.domdocument-doctype.html">DomDocument->doctype</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.domdocument-dump-file.html">DomDocument->dump_file</a></div> <div class="up"><a href="ref.domxml.html">DOM XML Functions</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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