Code igniter - Special Characters/Date in URL
<p>Codeigniter has this configuration setting </p>

<pre><code>$config['permitted_uri_chars'] = '';
</code></pre>

<p>using which we can specify which characters are allowed in the query string.</p>

<p>I have to accept date in my URL, the format is : Y/m/d H:i:s</p>

<p>The normal code igniter allowed URL character set is not allowing this date. For now I have set <code>$config['permitted_uri_chars']</code> as empty but that's obviously a security threat.  Please let me know which regex expression will work for this. </p>
