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<td><h1>CodeIgniter User Guide Version 1.7.2</h1></td>
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Path Helper
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<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 />
$non_existent_directory = '/path/to/nowhere';<br />
echo set_realpath($non_existent_directory, TRUE);<br />
// returns an <strong>error</strong>, as the path could not be resolved
<br /><br />
echo set_realpath($non_existent_directory, FALSE);<br />
// returns "/path/to/nowhere"
</code>
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