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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Cookie Helper : CodeIgniter User Guide</title><style type='text/css' media='all'>@import url('../userguide.css');</style><link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /><script type="text/javascript" src="../nav/nav.js"></script><script type="text/javascript" src="../nav/prototype.lite.js"></script><script type="text/javascript" src="../nav/moo.fx.js"></script><script type="text/javascript" src="../nav/user_guide_menu.js"></script><meta http-equiv='expires' content='-1' /><meta http-equiv= 'pragma' content='no-cache' /><meta name='robots' content='all' /><meta name='author' content='ExpressionEngine Dev Team' /><meta name='description' content='CodeIgniter User Guide' /></head><body><!-- START NAVIGATION --><div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div><div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div><div id="masthead"><table cellpadding="0" cellspacing="0" border="0" style="width:100%"><tr><td><h1>CodeIgniter User Guide Version 1.7.1</h1></td><td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td></tr></table></div><!-- END NAVIGATION --><!-- START BREADCRUMB --><table cellpadding="0" cellspacing="0" border="0" style="width:100%"><tr><td id="breadcrumb"><a href="http://codeigniter.com/">CodeIgniter Home</a> › <a href="../index.html">User Guide Home</a> › Cookie Helper</td><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></tr></table><!-- END BREADCRUMB --><br clear="all" /><!-- START CONTENT --><div id="content"><h1>Cookie Helper</h1><p>The Cookie Helper file contains functions that assist in working with cookies.</p><h2>Loading this Helper</h2><p>This helper is loaded using the following code:</p><code>$this->load->helper('cookie');</code><p>The following functions are available:</p><h2>set_cookie()</h2><p>Sets a cookie containing the values you specify. There are two ways to pass information to this function so that a cookie can be set:Array Method, and Discrete Parameters:</p><h4>Array Method</h4><p>Using this method, an associative array is passed to the first parameter:</p><code>$cookie = array(<br /> 'name' => 'The Cookie Name',<br /> 'value' => 'The Value',<br /> 'expire' => '86500',<br /> 'domain' => '.some-domain.com',<br /> 'path' => '/',<br /> 'prefix' => 'myprefix_',<br /> );<br /><br />set_cookie($cookie);</code><p><strong>Notes:</strong></p><p>Only the name and value are required.</p><p>The expiration is set in <strong>seconds</strong>, which will be added to the current time. Do not include the time, but rather only thenumber of seconds from <em>now</em> that you wish the cookie to be valid. If the expiration is set tozero the cookie will only last as long as the browser is open.</p><p>To delete a cookie set it with the expiration blank.</p><p>For site-wide cookies regardless of how your site is requested, add your URL to the <strong>domain</strong> starting with a period, like this: .your-domain.com</p><p>The path is usually not needed since the function sets a root path.</p><p>The prefix is only needed if you need to avoid name collisions with other identically named cookies for your server.</p><h4>Discrete Parameters</h4><p>If you prefer, you can set the cookie by passing data using individual parameters:</p><code>set_cookie($name, $value, $expire, $domain, $path, $prefix);</code><h2>get_cookie()</h2><p>Lets you fetch a cookie. The first parameter will contain the name of the cookie you are looking for (including any prefixes):</p><code>get_cookie('some_cookie');</code><p>The function returns FALSE (boolean) if the item you are attempting to retrieve does not exist.</p><p>The second optional parameter lets you run the data through the XSS filter. It's enabled by setting the second parameter to boolean TRUE;</p><p><code>get_cookie('some_cookie', TRUE);</code></p><h2>delete_cookie()</h2><p>Lets you delete a cookie. Unless you've set a custom path or other values, only the name of the cookie is needed:</p><code>delete_cookie("name");</code><p>This function is otherwise identical to <dfn>set_cookie()</dfn>, except that it does not have the value and expiration parameters. You can submit an arrayof values in the first parameter or you can set discrete parameters.</p><code>delete_cookie($name, $domain, $path, $prefix)</code></div><!-- END CONTENT --><div id="footer"><p>Previous Topic: <a href="compatibility_helper.html">Compatibility Helper</a> · <a href="#top">Top of Page</a> · <a href="../index.html">User Guide Home</a> · Next Topic: <a href="date_helper.html">Date Helper</a></p><p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p></div></body></html>