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Derek Jones8917af72010-03-05 12:41:45 -0600[diff] [blame]30<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]31<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
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42<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
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44Path Helper
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57
58<h1>Path Helper</h1>
59
60<p>The Path Helper file contains functions that permits you to work with file paths on the server.</p>
61
62
63<h2>Loading this Helper</h2>
64
65<p>This helper is loaded using the following code:</p>
66<code>$this->load->helper('path');</code>
67
68<p>The following functions are available:</p>
69
70
71<h2>set_realpath()</h2>
72
73<p>Checks to see if the path exists. This function will return a server path without symbolic links or relative directory structures. An optional second argument will cause an error to be triggered if the path cannot be resolved.</p>
74
75<code>$directory = '/etc/passwd';<br />
76echo set_realpath($directory);<br />
77// returns &quot;/etc/passwd&quot;<br />
78<br />
79$non_existent_directory = '/path/to/nowhere';<br />
80echo set_realpath($non_existent_directory, TRUE);<br />
81// returns an <strong>error</strong>, as the path could not be resolved
82<br /><br />
83echo set_realpath($non_existent_directory, FALSE);<br />
84// returns &quot;/path/to/nowhere&quot;
85
86
87
88</code>
89<h2>&nbsp;</h2>
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96Previous Topic:&nbsp;&nbsp;<a href="number_helper.html">Number Helper</a>
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100Next Topic:&nbsp;&nbsp;<a href="security_helper.html">Security Helper</a>
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Derek Jonesd6d70e32010-03-29 10:10:27 -0500[diff] [blame]102<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006-2010 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
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