BlueFire/api/user_guide/helpers/path_helper.html
2020-02-09 14:13:33 +07:00

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<td><h1>CodeIgniter User Guide Version 2.1.4</h1></td>
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<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
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 &quot;/etc/passwd&quot;<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 &quot;/path/to/nowhere&quot;
</code>
<h2>&nbsp;</h2>
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