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Derek Allard466039a2008-02-11 12:46:24 +0000[diff] [blame]1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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Rick Ellis25949532008-08-26 19:48:08 +0000[diff] [blame]30<td><h1>CodeIgniter User Guide Version 1.7</h1></td>
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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>$this->load->helper('path');</code>
67
68<p>The following functions are available:</p>
69
70
71<h2>set_realpath()</h2>
72
73<p>Checks to see if the path exists. This function will return a server path without symbolic links or relative directory structures. An optional second argument will cause an error to be triggered if the path cannot be resolved.</p>
74
Rick Ellis13d37ed2008-10-17 07:21:55 +0000[diff] [blame]75<code>$directory = '/etc/passwd';<br />
Derek Jonese0fc57b2008-09-04 19:29:17 +0000[diff] [blame]76echo set_realpath($directory);<br />
Derek Allard466039a2008-02-11 12:46:24 +0000[diff] [blame]77// returns &quot;/etc/passwd&quot;<br />
78<br />
Rick Ellis13d37ed2008-10-17 07:21:55 +0000[diff] [blame]79$non_existent_directory = '/path/to/nowhere';<br />
Derek Jonese0fc57b2008-09-04 19:29:17 +0000[diff] [blame]80echo set_realpath($non_existent_directory, TRUE);<br />
Rick Ellis13d37ed2008-10-17 07:21:55 +0000[diff] [blame]81// returns an <strong>error</strong>, as the path could not be resolved
82<br /><br />
Derek Jonese0fc57b2008-09-04 19:29:17 +0000[diff] [blame]83echo set_realpath($non_existent_directory, FALSE);<br />
Rick Ellis13d37ed2008-10-17 07:21:55 +0000[diff] [blame]84// returns &quot;/path/to/nowhere&quot;
85
86
87
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Derek Allard466039a2008-02-11 12:46:24 +0000[diff] [blame]89<h2>&nbsp;</h2>
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