| Derek Allard | 466039a | 2008-02-11 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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| Derek Jones | fd93d22 | 2008-05-06 15:18:50 +0000 | [diff] [blame] | 5 | <title>Path Helper : CodeIgniter User Guide</title>
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| Derek Allard | 466039a | 2008-02-11 12:46:24 +0000 | [diff] [blame] | 6 |
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| 7 | <style type='text/css' media='all'>@import url('../userguide.css');</style>
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| 19 | <meta name='author' content='ExpressionEngine Dev Team' />
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| 20 | <meta name='description' content='CodeIgniter User Guide' />
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| 21 | </head>
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| 24 | <!-- START NAVIGATION -->
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| 25 | <div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
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| 26 | <div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle.jpg" width="153" height="44" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
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| 29 | <tr>
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| Derek Jones | 6b7b11f | 2008-05-06 16:07:27 +0000 | [diff] [blame] | 30 | <td><h1>CodeIgniter User Guide Version 1.6.2</h1></td>
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| Derek Allard | 466039a | 2008-02-11 12:46:24 +0000 | [diff] [blame] | 31 | <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
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| 32 | </tr>
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| 33 | </table>
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| 34 | </div>
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| 35 | <!-- END NAVIGATION -->
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| 36 |
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| 38 | <!-- START BREADCRUMB -->
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| 39 | <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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| 40 | <tr>
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| 41 | <td id="breadcrumb">
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| 42 | <a href="http://codeigniter.com/">CodeIgniter Home</a> ›
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| 43 | <a href="../index.html">User Guide Home</a> ›
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| 44 | Path Helper
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| 45 | </td>
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| 46 | <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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| 47 | </tr>
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| 48 | </table>
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| 49 | <!-- END BREADCRUMB -->
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| 50 |
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| 51 | <br clear="all" />
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| 52 |
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| 53 |
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| 54 | <!-- START CONTENT -->
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| 55 | <div id="content">
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| 56 |
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| 57 |
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| 58 | <h1>Path Helper</h1>
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| 59 |
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| 60 | <p>The Path Helper file contains functions that permits you to work with file paths on the server.</p>
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| 61 |
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| 62 |
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| 63 | <h2>Loading this Helper</h2>
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| 64 |
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| 65 | <p>This helper is loaded using the following code:</p>
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| 66 | <code>$this->load->helper('path');</code>
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| 67 |
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| 68 | <p>The following functions are available:</p>
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| 69 |
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| 70 |
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| 71 | <h2>set_realpath()</h2>
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| 72 |
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| 73 | <p>Checks to see if the path exists. This function will return a server path without symbolic links or relative directory structures. An optional second argument will cause an error to be triggered if the path cannot be resolved.</p>
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| 74 |
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| 75 | <code>$directory = './../../etc/passwd';<br />
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| 76 | echo set_realpath($directory);<br />
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| 77 | // returns "/etc/passwd"<br />
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| 78 | <br />
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| 79 | $non_existent_directory = './../../path/not/found';<br />
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| 80 | echo set_realpath($non_existent_directory, TRUE);<br />
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| 81 | // returns "/path/not/found"<br />
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| 82 | <br />
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| 83 | echo set_realpath($non_existent_directory, FALSE);<br />
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| 84 | // returns an <strong>error</strong>, as the path could not be resolved</code>
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| 85 | <h2> </h2>
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| 86 | </div>
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| 87 | <!-- END CONTENT -->
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| 88 |
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| 89 |
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| 90 | <div id="footer">
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| 91 | <p>
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| 92 | Previous Topic: <a href="html_helper.html"> HTML Helper</a>
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| 93 | ·
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| 94 | <a href="#top">Top of Page</a> ·
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| 95 | <a href="../index.html">User Guide Home</a> ·
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| 96 | Next Topic: <a href="security_helper.html">Security Helper</a>
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| 97 | </p>
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| Derek Jones | 0787043 | 2008-02-13 03:49:26 +0000 | [diff] [blame] | 98 | <p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
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| Derek Allard | 466039a | 2008-02-11 12:46:24 +0000 | [diff] [blame] | 99 | </div>
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| 100 |
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| 101 | </body>
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| 102 | </html> |