diff options
| author | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
|---|---|---|
| committer | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
| commit | f4fb1db458fab52d0493ead52c9ea7e01206eaa7 (patch) | |
| tree | c549600f342f4d3f0df75a2f2f7c265be0f1cc72 /user_guide/general/ancillary_classes.html | |
| parent | c4dd200c1155a118afa32cd91d9bd67bc243f83a (diff) | |
Moved tutorial to new user guide directory.
Diffstat (limited to 'user_guide/general/ancillary_classes.html')
| -rw-r--r-- | user_guide/general/ancillary_classes.html | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/user_guide/general/ancillary_classes.html b/user_guide/general/ancillary_classes.html deleted file mode 100644 index fb78edaeb..000000000 --- a/user_guide/general/ancillary_classes.html +++ /dev/null @@ -1,117 +0,0 @@ -<!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>Creating Ancillary Classes : 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 2.0.3</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> › -Creating Ancillary Classes -</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>Creating Ancillary Classes</h1> - -<p>In some cases you may want to develop classes that exist apart from your controllers but have the ability to -utilize all of CodeIgniter's resources. This is easily possible as you'll see.</p> - -<h2>get_instance()</h2> - - -<p><strong>Any class that you instantiate within your controller functions can access CodeIgniter's native resources</strong> simply by using the <kbd>get_instance()</kbd> function. -This function returns the main CodeIgniter object.</p> - -<p>Normally, to call any of the available CodeIgniter functions requires you to use the <kbd>$this</kbd> construct:</p> - -<code> -<strong>$this</strong>->load->helper('url');<br /> -<strong>$this</strong>->load->library('session');<br /> -<strong>$this</strong>->config->item('base_url');<br /> -etc. -</code> - -<p><kbd>$this</kbd>, however, only works within your controllers, your models, or your views. -If you would like to use CodeIgniter's classes from within your own custom classes you can do so as follows:</p> - - -<p>First, assign the CodeIgniter object to a variable:</p> - -<code>$CI =& get_instance();</code> - -<p>Once you've assigned the object to a variable, you'll use that variable <em>instead</em> of <kbd>$this</kbd>:</p> - -<code> -$CI =& get_instance();<br /><br /> -$CI->load->helper('url');<br /> -$CI->load->library('session');<br /> -$CI->config->item('base_url');<br /> -etc. -</code> - -<p class="important"><strong>Note:</strong> You'll notice that the above get_instance() function is being passed by reference: -<br /><br /> -<var>$CI =& get_instance();</var> -<br /><br /> -This is very important. Assigning by reference allows you to use the original CodeIgniter object rather than creating a copy of it.</p> -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="creating_libraries.html">Creating Core Libraries</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="autoloader.html">Auto-loading Resources</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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