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<title>Gets the file extension</title>
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<h1 class="refname">DirectoryIterator::getExtension</h1>
<p class="verinfo">(PHP 5 >= 5.3.6)</p><p class="refpurpose"><span class="refname">DirectoryIterator::getExtension</span> — <span class="dc-title">Gets the file extension</span></p>
</div>
<div class="refsect1 description" id="refsect1-directoryiterator.getextension-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">string</span> <span class="methodname"><strong>DirectoryIterator::getExtension</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Retrieves the file extension.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-directoryiterator.getextension-parameters">
<h3 class="title">Parameters</h3>
<p class="para">This function has no parameters.</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-directoryiterator.getextension-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns a <span class="type"><a href="language.types.string.html" class="type string">string</a></span> containing the file extension, or an
empty <span class="type"><a href="language.types.string.html" class="type string">string</a></span> if the file has no extension.
</p>
</div>
<div class="refsect1 examples" id="refsect1-directoryiterator.getextension-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-3848">
<p><strong>Example #1 <span class="function"><strong>DirectoryIterator::getExtension()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />$directory </span><span style="color: #007700">= new </span><span style="color: #0000BB">DirectoryIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">__DIR__</span><span style="color: #007700">);<br />foreach (</span><span style="color: #0000BB">$directory </span><span style="color: #007700">as </span><span style="color: #0000BB">$fileinfo</span><span style="color: #007700">) {<br /> if (</span><span style="color: #0000BB">$fileinfo</span><span style="color: #007700">-></span><span style="color: #0000BB">isFile</span><span style="color: #007700">()) {<br /> echo </span><span style="color: #0000BB">$fileinfo</span><span style="color: #007700">-></span><span style="color: #0000BB">getExtension</span><span style="color: #007700">() . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> }<br />}<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
php
txt
jpg
gz
</pre></div>
</div>
</div>
</div>
<div class="refsect1 notes" id="refsect1-directoryiterator.getextension-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
This method is only available as of PHP 5.3.6.
Another way of getting the extension is to use the
<span class="function"><a href="function.pathinfo.html" class="function">pathinfo()</a></span> function.
</p>
<div class="example" id="example-3849">
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$extension </span><span style="color: #007700">= </span><span style="color: #0000BB">pathinfo</span><span style="color: #007700">(</span><span style="color: #0000BB">$fileinfo</span><span style="color: #007700">-></span><span style="color: #0000BB">getFilename</span><span style="color: #007700">(), </span><span style="color: #0000BB">PATHINFO_EXTENSION</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-directoryiterator.getextension-seealso">
<h3 class="title">See Also</h3>
<ul class="simplelist">
<li class="member"> <span class="methodname"><a href="directoryiterator.getfilename.html" class="methodname" rel="rdfs-seeAlso">DirectoryIterator::getFilename()</a> - Return file name of current DirectoryIterator item.</span></li>
<li class="member"> <span class="methodname"><a href="directoryiterator.getbasename.html" class="methodname" rel="rdfs-seeAlso">DirectoryIterator::getBasename()</a> - Get base name of current DirectoryIterator item.</span></li>
<li class="member"> <span class="function"><a href="function.pathinfo.html" class="function" rel="rdfs-seeAlso">pathinfo()</a> - Returns information about a file path</span></li>
</ul>
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