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60 <p>The Path Helper file contains functions that permits you to work with file paths on the server.
</p>
63 <h2>Loading this Helper
</h2>
65 <p>This helper is loaded using the following code:
</p>
66 <code>$this-
>load-
>helper('path');
</code>
68 <p>The following functions are available:
</p>
71 <h2>set_realpath()
</h2>
73 <p>Checks to see if the path exists. This function will return a server path without symbolic links or relative directory structures. An optional second argument will cause an error to be triggered if the path cannot be resolved.
</p>
75 <code>$directory = '/etc/passwd';
<br />
76 echo set_realpath($directory);
<br />
77 // returns
"/etc/passwd
"<br />
79 $non_existent_directory = '/path/to/nowhere';
<br />
80 echo set_realpath($non_existent_directory, TRUE);
<br />
81 // returns an
<strong>error
</strong>, as the path could not be resolved
83 echo set_realpath($non_existent_directory, FALSE);
<br />
84 // returns
"/path/to/nowhere
"
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