Initial Import
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+<td><h1>Code Igniter User Guide Version 1.4.0</h1></td>
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+Creating Ancillary Classes
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+<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 Code Igniter'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 Code Igniter's native resources</strong> simply by using the <kbd>get_instance()</kbd> function.
+This function returns the main Code Igniter object.</p>
+
+<p>Normally, to call any of the available Code Igniter 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>$this</kbd>, however, only works within your controllers, your models, or your views.
+If you would like to use Code Igniter's classes from within your own custom classes you can do so as follows:</p>
+
+
+<p>First, assign the Code Igniter object to a variable:</p>
+
+<code>$obj =& get_instance();</code>
+
+<p>Once you've assigned the object to a variable, you'll use that variable <em>instead</em> of <kbd>$this</kbd>:</p>
+
+<code>
+$obj =& get_instance();<br /><br />
+$obj->load->helper('url');<br />
+$obj->load->library('session');<br />
+$obj->config->item('base_url');<br />
+etc.
+</code>
+
+<p class="important"><strong>Note:</strong> You'll notice that the above get_instance() function is being passed by reference:
+<br /><br />
+<var>$obj =& get_instance();</var>
+<br /><br />
+This is very important. Assigning by reference allows you to use the original Code Igniter object rather than creating a copy of it.</p>
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