Source of: /manual/en/domnode.replacechild.php
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<div id="domnode.replacechild" class="refentry">
<div class="refnamediv">
<h1 class="refname">DOMNode::replaceChild</h1>
<p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">DOMNode::replaceChild</span> — <span class="dc-title">
Replaces a child
</span></p>
</div>
<a name="domnode.replacechild.description"></a><div class="refsect1 description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type"><a href="class.domnode.php" class="type DOMNode">DOMNode</a></span> <span class="methodname"><b>DOMNode::replaceChild</b></span>
( <span class="methodparam"><span class="type"><a href="class.domnode.php" class="type DOMNode">DOMNode</a></span> <tt class="parameter">$newnode</tt></span>
, <span class="methodparam"><span class="type"><a href="class.domnode.php" class="type DOMNode">DOMNode</a></span> <tt class="parameter">$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>
<a name="domnode.replacechild.parameters"></a><div class="refsect1 parameters">
<h3 class="title">Parameters</h3>
<p class="para">
</p><dl>
<dt class="varlistentry">
<span class="term"><i><tt class="parameter">newnode</tt></i>
</span>
</dt><dd class="listitem">
<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.php" class="xref">DOMDocument::importNode</a>.
</p>
</dd>
<dt class="varlistentry">
<span class="term"><i><tt class="parameter">oldnode</tt></i>
</span>
</dt><dd class="listitem">
<p class="para">
The old node.
</p>
</dd>
</dl>
<p>
</p>
</div>
<a name="domnode.replacechild.returnvalues"></a><div class="refsect1 returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
The old node or <b><tt class="constant">FALSE</tt></b> if an error occur.
</p>
</div>
<a name="domnode.replacechild.errors"></a><div class="refsect1 errors">
<h3 class="title">Errors/Exceptions</h3>
<p class="para">
</p><dl>
<dt class="varlistentry">
<span class="term"><b><tt class="constant">DOM_NO_MODIFICATION_ALLOWED_ERR</tt></b></span>
</dt><dd class="listitem">
<p class="para">
Raised if this node is readonly or if the previous parent of the node
being inserted is readonly.
</p>
</dd>
<dt class="varlistentry">
<span class="term"><b><tt class="constant">DOM_HIERARCHY_REQUEST_ERR</tt></b></span>
</dt><dd class="listitem">
<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 class="varlistentry">
<span class="term"><b><tt class="constant">DOM_WRONG_DOCUMENT_ERR</tt></b></span>
</dt><dd class="listitem">
<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 class="varlistentry">
<span class="term"><b><tt class="constant">DOM_NOT_FOUND</tt></b></span>
</dt><dd class="listitem">
<p class="para">
Raised if <i><tt class="parameter">oldnode</tt></i>
is not a child of this node.
</p>
</dd>
</dl>
<p>
</p>
</div>
<a name="domnode.replacechild.seealso"></a><div class="refsect1 seealso">
<h3 class="title">See Also</h3>
<p class="para">
</p><ul class="simplelist">
<li class="member"> <span class="methodname"><a href="domnode.appendchild.php" class="function" rel="rdfs-seeAlso">DOMNode::appendChild</a> - Adds new child at the end of the children</span></li>
<li class="member"> <span class="methodname"><a href="domnode.removechild.php" class="function" rel="rdfs-seeAlso">DOMNode::removeChild</a> - Removes child from list of children</span></li>
</ul><p>
</p>
</div>
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