147 lines
6.5 KiB
HTML
147 lines
6.5 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Cookie Helper : CodeIgniter User Guide</title>
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<style type='text/css' media='all'>@import url('../userguide.css');</style>
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<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
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<script type="text/javascript" src="../nav/nav.js"></script>
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<script type="text/javascript" src="../nav/prototype.lite.js"></script>
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<script type="text/javascript" src="../nav/moo.fx.js"></script>
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<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
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<meta http-equiv='expires' content='-1' />
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<meta http-equiv= 'pragma' content='no-cache' />
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<meta name='robots' content='all' />
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<meta name='author' content='ExpressionEngine Dev Team' />
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<meta name='description' content='CodeIgniter User Guide' />
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</head>
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<body>
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<!-- START NAVIGATION -->
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<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
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<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>
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<div id="masthead">
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<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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<tr>
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<td><h1>CodeIgniter User Guide Version 1.7.3</h1></td>
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<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
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</tr>
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</table>
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</div>
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<!-- END NAVIGATION -->
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<!-- START BREADCRUMB -->
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<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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<tr>
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<td id="breadcrumb">
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<a href="http://codeigniter.com/">CodeIgniter Home</a> ›
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<a href="../index.html">User Guide Home</a> ›
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Cookie Helper
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</td>
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<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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</tr>
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</table>
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<!-- END BREADCRUMB -->
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<br clear="all" />
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<!-- START CONTENT -->
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<div id="content">
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<h1>Cookie Helper</h1>
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<p>The Cookie Helper file contains functions that assist in working with cookies.</p>
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<h2>Loading this Helper</h2>
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<p>This helper is loaded using the following code:</p>
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<code>$this->load->helper('cookie');</code>
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<p>The following functions are available:</p>
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<h2>set_cookie()</h2>
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<p>Sets a cookie containing the values you specify. There are two ways to pass information to this function so that a cookie can be set:
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Array Method, and Discrete Parameters:</p>
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<h4>Array Method</h4>
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<p>Using this method, an associative array is passed to the first parameter:</p>
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<code>$cookie = array(<br />
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'name' => 'The Cookie Name',<br />
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'value' => 'The Value',<br />
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'expire' => '86500',<br />
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'domain' => '.some-domain.com',<br />
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'path' => '/',<br />
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'prefix' => 'myprefix_',<br />
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);<br />
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<br />
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set_cookie($cookie);
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</code>
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<p><strong>Notes:</strong></p>
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<p>Only the name and value are required. To delete a cookie set it with the expiration blank.</p>
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<p>The expiration is set in <strong>seconds</strong>, which will be added to the current time. Do not include the time, but rather only the
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number of seconds from <em>now</em> that you wish the cookie to be valid. If the expiration is set to
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zero the cookie will only last as long as the browser is open.</p>
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<p>For site-wide cookies regardless of how your site is requested, add your URL to the <strong>domain</strong> starting with a period, like this: .your-domain.com</p>
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<p>The path is usually not needed since the function sets a root path.</p>
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<p>The prefix is only needed if you need to avoid name collisions with other identically named cookies for your server.</p>
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<h4>Discrete Parameters</h4>
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<p>If you prefer, you can set the cookie by passing data using individual parameters:</p>
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<code>set_cookie($name, $value, $expire, $domain, $path, $prefix);</code>
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<h2>get_cookie()</h2>
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<p>Lets you fetch a cookie. The first parameter will contain the name of the cookie you are looking for (including any prefixes):</p>
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<code>get_cookie('some_cookie');</code>
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<p>The function returns FALSE (boolean) if the item you are attempting to retrieve does not exist.</p>
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<p>The second optional parameter lets you run the data through the XSS filter. It's enabled by setting the second parameter to boolean TRUE;</p>
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<p><code>get_cookie('some_cookie', TRUE);</code></p>
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<h2>delete_cookie()</h2>
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<p>Lets you delete a cookie. Unless you've set a custom path or other values, only the name of the cookie is needed:</p>
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<code>delete_cookie("name");</code>
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<p>This function is otherwise identical to <dfn>set_cookie()</dfn>, except that it does not have the value and expiration parameters. You can submit an array
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of values in the first parameter or you can set discrete parameters.</p>
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<code>delete_cookie($name, $domain, $path, $prefix)</code>
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</div>
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<!-- END CONTENT -->
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<div id="footer">
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<p>
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Previous Topic: <a href="compatibility_helper.html">Compatibility Helper</a>
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·
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<a href="#top">Top of Page</a> ·
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<a href="../index.html">User Guide Home</a> ·
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Next Topic: <a href="date_helper.html">Date Helper</a></p>
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<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006-2010 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
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</div>
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</body>
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</html>
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