uTools-Manuals/docs/php/simplexml_import_dom.html
2019-04-08 23:22:26 +08:00

115 lines
5.7 KiB
HTML

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Get a SimpleXMLElement object from a DOM node</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.simplexml-import-dom" class="refentry">
<div class="refnamediv">
<h1 class="refname">simplexml_import_dom</h1>
<p class="verinfo">(PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">simplexml_import_dom</span> &mdash; <span class="dc-title">Get a <em>SimpleXMLElement</em> object from a DOM node</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.simplexml-import-dom-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>simplexml_import_dom</strong></span>
( <span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <code class="parameter">$node</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$class_name</code><span class="initializer"> = &quot;SimpleXMLElement&quot;</span></span>
] ) : <span class="type"><a href="class.simplexmlelement.html" class="type SimpleXMLElement">SimpleXMLElement</a></span></div>
<p class="para rdfs-comment">
This function takes a node of a <a href="book.dom.html" class="link">DOM</a>
document and makes it into a SimpleXML node. This new object can
then be used as a native SimpleXML element.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.simplexml-import-dom-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">node</code></dt>
<dd>
<p class="para">
A <a href="book.dom.html" class="link">DOM</a> Element node
</p>
</dd>
<dt>
<code class="parameter">class_name</code></dt>
<dd>
<p class="para">
You may use this optional parameter so that
<span class="function"><strong>simplexml_import_dom()</strong></span> will return an object of
the specified class. That class should extend the
<span class="type"><a href="class.simplexmlelement.html" class="type SimpleXMLElement">SimpleXMLElement</a></span> class.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.simplexml-import-dom-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns a <span class="type"><a href="class.simplexmlelement.html" class="type SimpleXMLElement">SimpleXMLElement</a></span> 或者在失败时返回 <strong><code>FALSE</code></strong>.
</p>
<div class="warning"><strong class="warning">Warning</strong><p class="simpara">此函数可能返回布尔值
<strong><code>FALSE</code></strong>,但也可能返回等同于 <strong><code>FALSE</code></strong> 的非布尔值。请阅读 <a href="language.types.boolean.html" class="link">布尔类型</a>章节以获取更多信息。应使用
<a href="language.operators.comparison.html" class="link">===
运算符</a>来测试此函数的返回值。</p></div>
</div>
<div class="refsect1 examples" id="refsect1-function.simplexml-import-dom-examples">
<h3 class="title">范例</h3>
<p class="para">
<div class="example" id="example-6592">
<p><strong>Example #1 Importing DOM</strong></p>
<div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$dom&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">DOMDocument</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$dom</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">loadXML</span><span style="color: #007700">(</span><span style="color: #DD0000">'&lt;books&gt;&lt;book&gt;&lt;title&gt;blah&lt;/title&gt;&lt;/book&gt;&lt;/books&gt;'</span><span style="color: #007700">);<br />if&nbsp;(!</span><span style="color: #0000BB">$dom</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #DD0000">'Error&nbsp;while&nbsp;parsing&nbsp;the&nbsp;document'</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;exit;<br />}<br /><br /></span><span style="color: #0000BB">$s&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">simplexml_import_dom</span><span style="color: #007700">(</span><span style="color: #0000BB">$dom</span><span style="color: #007700">);<br /><br />echo&nbsp;</span><span style="color: #0000BB">$s</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">book</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]-&gt;</span><span style="color: #0000BB">title</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
</div>
<div class="example-contents"><p>以上例程会输出:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
blah
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.simplexml-import-dom-seealso">
<h3 class="title">参见</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="dom_import_simplexml.html" class="function" rel="rdfs-seeAlso">dom_import_simplexml()</a> - Gets a DOMElement object from a
SimpleXMLElement object</span></li>
<li class="member"><a href="simplexml.examples_basic.html" class="xref">Basic SimpleXML usage</a></li>
</ul>
</p>
</div>
</div></div></div></body></html>