domnode.replacechild.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>Replaces a child</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="class.domnode.html">DOMNode</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.domnodelist.html">DOMNodeList</a></div> <div class="up"><a href="class.domnode.html">DOMNode</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="domnode.replacechild" class="refentry"> <div class="refnamediv"> <h1 class="refname">DOMNode::replaceChild</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">DOMNode::replaceChild</span> — <span class="dc-title"> Replaces a child </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <span class="methodname"><b><b>DOMNode::replaceChild</b></b></span> ( <span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <tt class="parameter">$newnode</tt></span> , <span class="methodparam"><span class="type"><a href="class.domnode.html" class="type DOMNode">DOMNode</a></span> <tt class="parameter">$oldnode</tt></span> )</div> <p class="para rdfs-comment"> This function replaces the child <i><tt class="parameter">oldnode</tt></i> with the passed new node. If the new node is already a child it will not be added a second time. If the replacement succeeds the old node is returned. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">newnode</tt></i></span> <dd> <p class="para"> The new node. It must be a member of the target document, i.e. created by one of the DOMDocument->createXXX() methods or imported in the document by <a href="domdocument.importnode.html" class="xref">DOMDocument::importNode</a>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">oldnode</tt></i></span> <dd> <p class="para"> The old node. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> The old node or <b><tt>FALSE</tt></b> if an error occur. </p> </div> <div class="refsect1 errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> <dl> <dt> <span class="term"><b><tt>DOM_NO_MODIFICATION_ALLOWED_ERR</tt></b></span> <dd> <p class="para"> Raised if this node is readonly or if the previous parent of the node being inserted is readonly. </p> </dd> </dt> <dt> <span class="term"><b><tt>DOM_HIERARCHY_REQUEST_ERR</tt></b></span> <dd> <p class="para"> Raised if this node is of a type that does not allow children of the type of the <i><tt class="parameter">newnode</tt></i> node, or if the node to put in is one of this node's ancestors or this node itself. </p> </dd> </dt> <dt> <span class="term"><b><tt>DOM_WRONG_DOCUMENT_ERR</tt></b></span> <dd> <p class="para"> Raised if <i><tt class="parameter">newnode</tt></i> was created from a different document than the one that created this node. </p> </dd> </dt> <dt> <span class="term"><b><tt>DOM_NOT_FOUND</tt></b></span> <dd> <p class="para"> Raised if <i><tt class="parameter">oldnode</tt></i> is not a child of this node. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="domnode.appendchild.html" class="xref">DOMNode::appendChild</a></li> <li class="member"><a href="domnode.removechild.html" class="xref">DOMNode::removeChild</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="class.domnode.html">DOMNode</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.domnodelist.html">DOMNodeList</a></div> <div class="up"><a href="class.domnode.html">DOMNode</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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