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<td><h1>Code Igniter User Guide Version 1.4.0</h1></td>
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<a href="http://www.codeigniter.com/">Code Igniter Home</a> &nbsp;&#8250;&nbsp;
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Using Code Igniter Libraries
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<h1>Using Code Igniter Libraries</h1>

<p>All of the available libraries are located in your <dfn>system/libraries</dfn> folder. 
In most cases, to use one of these classes involves initializing it within a <a href="controllers.html">controller</a> using the following initialization function:</p>

<code>$this->load->library('<var>class name</var>'); </code>

<p>Where <var>class name</var> is the name of the class you want to invoke.  For example, to load the validation class you would do this:</p>

<code>$this->load->library('<var>validation</var>'); </code>

<p>Once initialized you can use it as indicated in the user guide page corresponding to that class.</p>

<h2>Creating Your Own Libraries</h2>

<p>Please read the section of the user guide that discusses how to <a href="creating_libraries.html">create your own libraries</a></p>



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