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<title>Path Helper : CodeIgniter User Guide</title>
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<td><h1>CodeIgniter User Guide Version 1.7.1</h1></td>
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<a href="http://codeigniter.com/">CodeIgniter Home</a> ›
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<a href="../index.html">User Guide 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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<h1>Path Helper</h1>
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<p>The Path Helper file contains functions that permits you to work with file paths on the server.</p>
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<h2>Loading this Helper</h2>
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<p>This helper is loaded using the following code:</p>
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<code>$this->load->helper('path');</code>
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<p>The following functions are available:</p>
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<h2>set_realpath()</h2>
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<p>Checks to see if the path exists. This function will return a server path without symbolic links or relative directory structures. An optional second argument will cause an error to be triggered if the path cannot be resolved.</p>
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<code>$directory = '/etc/passwd';<br />
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echo set_realpath($directory);<br />
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// returns "/etc/passwd"<br />
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<br />
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$non_existent_directory = '/path/to/nowhere';<br />
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echo set_realpath($non_existent_directory, TRUE);<br />
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// returns an <strong>error</strong>, as the path could not be resolved
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<br /><br />
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echo set_realpath($non_existent_directory, FALSE);<br />
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// returns "/path/to/nowhere"
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</code>
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<h2> </h2>
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<p>
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Previous Topic: <a href="number_helper.html">Number Helper</a>
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·
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<a href="#top">Top of Page</a> ·
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<a href="../index.html">User Guide Home</a> ·
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Next Topic: <a href="security_helper.html">Security Helper</a>
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<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
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