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<title>Check whether the inner iterator's current element has children</title>
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<h1 class="refname">RecursiveCallbackFilterIterator::hasChildren</h1>
<p class="verinfo">(PHP 5 >= 5.4.0)</p><p class="refpurpose"><span class="refname">RecursiveCallbackFilterIterator::hasChildren</span> — <span class="dc-title">Check whether the inner iterator's current element has children</span></p>
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<div class="refsect1 description" id="refsect1-recursivecallbackfilteriterator.haschildren-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>RecursiveCallbackFilterIterator::hasChildren</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Returns <strong><code>TRUE</code></strong> if the current element has children, <strong><code>FALSE</code></strong> otherwise.
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<div class="refsect1 parameters" id="refsect1-recursivecallbackfilteriterator.haschildren-parameters">
<h3 class="title">Parameters</h3>
<p class="para">This function has no parameters.</p>
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<div class="refsect1 returnvalues" id="refsect1-recursivecallbackfilteriterator.haschildren-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> if the current element has children, <strong><code>FALSE</code></strong> otherwise.
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<div class="refsect1 examples" id="refsect1-recursivecallbackfilteriterator.haschildren-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="recursivecallbackfilteriterator.haschildren.examples.basic">
<p><strong>Example #1 <span class="methodname"><strong>RecursiveCallbackFilterIterator::hasChildren()</strong></span> basic usage</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />$dir </span><span style="color: #007700">= new </span><span style="color: #0000BB">RecursiveDirectoryIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">__DIR__</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Recursively iterate over XML files<br /></span><span style="color: #0000BB">$files </span><span style="color: #007700">= new </span><span style="color: #0000BB">RecursiveCallbackFilterIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">$dir</span><span style="color: #007700">, function (</span><span style="color: #0000BB">$current</span><span style="color: #007700">, </span><span style="color: #0000BB">$key</span><span style="color: #007700">, </span><span style="color: #0000BB">$iterator</span><span style="color: #007700">) {<br /> </span><span style="color: #FF8000">// Allow recursion into directories<br /> </span><span style="color: #007700">if (</span><span style="color: #0000BB">$iterator</span><span style="color: #007700">-></span><span style="color: #0000BB">hasChildren</span><span style="color: #007700">()) {<br /> return </span><span style="color: #0000BB">TRUE</span><span style="color: #007700">;<br /> }<br /> </span><span style="color: #FF8000">// Check for XML file<br /> </span><span style="color: #007700">if (!</span><span style="color: #0000BB">strcasecmp</span><span style="color: #007700">(</span><span style="color: #0000BB">$current</span><span style="color: #007700">-></span><span style="color: #0000BB">getExtension</span><span style="color: #007700">(), </span><span style="color: #DD0000">'xml'</span><span style="color: #007700">)) {<br /> return </span><span style="color: #0000BB">TRUE</span><span style="color: #007700">;<br /> }<br /> return </span><span style="color: #0000BB">FALSE</span><span style="color: #007700">;<br />});<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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<div class="refsect1 seealso" id="refsect1-recursivecallbackfilteriterator.haschildren-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><a href="class.recursivecallbackfilteriterator.html#recursivecallbackfilteriterator.examples" class="link">RecursiveCallbackFilterIterator Examples</a></li>
<li class="member"> <span class="methodname"><a href="recursivecallbackfilteriterator.construct.html" class="methodname" rel="rdfs-seeAlso">RecursiveCallbackFilterIterator::__construct()</a> - Create a RecursiveCallbackFilterIterator from a RecursiveIterator</span></li>
<li class="member"> <span class="methodname"><a href="recursivecallbackfilteriterator.getchildren.html" class="methodname" rel="rdfs-seeAlso">RecursiveCallbackFilteriterator::getChildren()</a> - Return the inner iterator's children contained in a RecursiveCallbackFilterIterator</span></li>
</ul>
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