added Path Helper
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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+<title>CodeIgniter User Guide : Inflector Helper</title>
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+<td><h1>CodeIgniter User Guide Version 1.6.1</h1></td>
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+<a href="http://codeigniter.com/">CodeIgniter Home</a> ›
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+Path Helper
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+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td>
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+<!-- START CONTENT -->
+<div id="content">
+
+
+<h1>Path Helper</h1>
+
+<p>The Path Helper file contains functions that permits you to work with file paths on the server.</p>
+
+
+<h2>Loading this Helper</h2>
+
+<p>This helper is loaded using the following code:</p>
+<code>$this->load->helper('path');</code>
+
+<p>The following functions are available:</p>
+
+
+<h2>set_realpath()</h2>
+
+<p>Checks to see if the path exists. This function will return a server path without symbolic links or relative directory structures. An optional second argument will cause an error to be triggered if the path cannot be resolved.</p>
+
+<code>$directory = './../../etc/passwd';<br />
+echo set_realpath($directory);<br />
+// returns "/etc/passwd"<br />
+<br />
+$non_existent_directory = './../../path/not/found';<br />
+echo set_realpath($non_existent_directory, TRUE);<br />
+// returns "/path/not/found"<br />
+<br />
+echo set_realpath($non_existent_directory, FALSE);<br />
+// returns an <strong>error</strong>, as the path could not be resolved</code>
+<h2> </h2>
+</div>
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