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| <td><h1>Code Igniter User Guide Version 1.5.0b3</h1></td> | |
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| <a href="http://www.codeigniter.com/">Code Igniter Home</a> › | |
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| Appflow | |
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| <h1>Application Flow Chart</h1> | |
| <p>The following graphic illustrates how data flows throughout the system:</p> | |
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| <li>The index.php serves as the front controller, initializing the base resources needed to run Code Igniter.</li> | |
| <li>The Router examines the HTTP request to determine what should be done with it.</li> | |
| <li>If a cache file exists, it is sent directly to the browser, bypassing the normal system execution.</li> | |
| <li>Security. Before the application controller is loaded, the HTTP request and any user submitted data is filtered for security.</li> | |
| <li>The Controller loads the model, core libraries, plugins, helpers, and any other resources needed to process the specific request.</li> | |
| <li>The finalized View is rendered then sent to the web browser to be seen. If caching is enabled, the view is cached first so | |
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