function.simplexml-load-file.html
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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>Interprets an XML file into an object</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.simplexml-import-dom.html">simplexml_import_dom</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.simplexml-load-string.html">simplexml_load_string</a></div> <div class="up"><a href="ref.simplexml.html">SimpleXML Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.simplexml-load-file" class="refentry"> <div class="refnamediv"> <h1 class="refname">simplexml_load_file</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">simplexml_load_file</span> — <span class="dc-title"> Interprets an XML file into an object </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">object</span> <span class="methodname"><b><b>simplexml_load_file</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$filename</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$class_name</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$options</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$ns</tt></span> [, <span class="methodparam"><span class="type">bool</span> <tt class="parameter">$is_prefix</tt></span> ]]]] )</div> <p class="para rdfs-comment"> Convert the well-formed XML document in the given file to an object. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">filename</tt></i></span> <dd> <p class="para"> Path to the XML file </p> <blockquote><p><b class="note">Note</b>: Libxml 2 unescapes the URI, so if you want to pass e.g. <i>b&c</i> as the URI parameter <i>a</i>, you have to call <i>simplexml_load_file(rawurlencode('http://example.com/?a=' . urlencode('b&c')))</i>. Since PHP 5.1.0 you don't need to do this because PHP will do it for you. <br /> </p></blockquote> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">class_name</tt></i></span> <dd> <p class="para"> You may use this optional parameter so that <b>simplexml_load_file()</b> will return an object of the specified class. That class should extend the <span class="type SimpleXMLElement">SimpleXMLElement</span> class. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">options</tt></i></span> <dd> <p class="para"> Since PHP 5.1.0 and Libxml 2.6.0, you may also use the <i><tt class="parameter">options</tt></i> parameter to specify <a href="libxml.constants.html" class="link">additional Libxml parameters</a>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">ns</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">is_prefix</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns an <a href="language.types.object.html" class="type object">object</a> of class <span class="type SimpleXMLElement">SimpleXMLElement</span> with properties containing the data held within the XML document. On errors, it will return <b><tt>FALSE</tt></b>. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Interpret an XML document</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// The file test.xml contains an XML document with a root element<br />// and at least an element /[root]/title.<br /><br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">file_exists</span><span style="color: #007700">(</span><span style="color: #DD0000">'test.xml'</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">$xml </span><span style="color: #007700">= </span><span style="color: #0000BB">simplexml_load_file</span><span style="color: #007700">(</span><span style="color: #DD0000">'test.xml'</span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$xml</span><span style="color: #007700">);<br />} else {<br /> exit(</span><span style="color: #DD0000">'Failed to open test.xml.'</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p> This script will display, on success: </p></div> <div class="example-contents"><pre><div class="cdata"><pre>SimpleXMLElement Object( [title] => Example Title ...)</pre></div> </pre></div> <div class="example-contents"><p> At this point, you can go about using <i>$xml->title</i> and any other elements. </p></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.simplexml-load-string.html" class="xref">simplexml_load_string</a></li> <li class="member"><a href="function.simplexml-element-construct.html" class="xref">SimpleXMLElement->__construct</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.simplexml-import-dom.html">simplexml_import_dom</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.simplexml-load-string.html">simplexml_load_string</a></div> <div class="up"><a href="ref.simplexml.html">SimpleXML 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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