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264<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
265<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
266</ul>
267</li>
268</ul>
269<ul>
270<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
271<li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
272<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
273</ul>
274</li>
275</ul>
276<ul>
277<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
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279<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
280<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
281<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
282<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
283<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
284<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
285<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
286<li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
287<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
288<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
289<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
290<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
291<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
292<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
293<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
294<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
295<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
296<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
297<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
298<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
299<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
300<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
301<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
302<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
303<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
304</ul>
305</li>
306</ul>
307<ul>
308<li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Libraries</a><ul>
309<li class="toctree-l2"><a class="reference internal" href="../libraries/benchmark.html">Benchmarking Class</a></li>
310<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
311<li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li>
312<li class="toctree-l2"><a class="reference internal" href="../libraries/cart.html">Shopping Cart Class</a></li>
313<li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li>
314<li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
315<li class="toctree-l2"><a class="reference internal" href="../libraries/encrypt.html">Encrypt Class</a></li>
316<li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Library</a></li>
317<li class="toctree-l2"><a class="reference internal" href="../libraries/file_uploading.html">File Uploading Class</a></li>
318<li class="toctree-l2"><a class="reference internal" href="../libraries/form_validation.html">Form Validation</a></li>
319<li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li>
320<li class="toctree-l2"><a class="reference internal" href="../libraries/image_lib.html">Image Manipulation Class</a></li>
321<li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li>
322<li class="toctree-l2"><a class="reference internal" href="../libraries/javascript.html">Javascript Class</a></li>
323<li class="toctree-l2"><a class="reference internal" href="../libraries/language.html">Language Class</a></li>
324<li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li>
325<li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li>
326<li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li>
327<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li>
328<li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li>
329<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li>
330<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
331<li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li>
332<li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li>
333<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li>
334<li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li>
335<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li>
336<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
337<li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
338<li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li>
339</ul>
340</li>
341</ul>
342<ul>
343<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
344<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
345<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
346<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
347<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
348<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
349<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
350<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
351<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
352<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
353<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
354<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
355<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
356<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
357<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
358</ul>
359</li>
360</ul>
361<ul>
362<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
363<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
364<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
365<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
366<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
367<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
368<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
369<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
370<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
371<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
372<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
373<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
374<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
375<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
376<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
377<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
378<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
379<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
380<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
381<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
382<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
383<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
384</ul>
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421
422 <div class="section" id="installation-instructions">
423<h1>Installation Instructions<a class="headerlink" href="#installation-instructions" title="Permalink to this headline"></a></h1>
424<p>CodeIgniter is installed in four steps:</p>
425<ol class="arabic simple">
426<li>Unzip the package.</li>
427<li>Upload the CodeIgniter folders and files to your server. Normally the
428<em>index.php</em> file will be at your root.</li>
429<li>Open the <em>application/config/config.php</em> file with a text editor and
430set your base URL. If you intend to use encryption or sessions, set
431your encryption key.</li>
432<li>If you intend to use a database, open the
433<em>application/config/database.php</em> file with a text editor and set your
434database settings.</li>
435</ol>
436<p>If you wish to increase security by hiding the location of your
437CodeIgniter files you can rename the system and application folders to
438something more private. If you do rename them, you must open your main
439<em>index.php</em> file and set the <code class="docutils literal"><span class="pre">$system_path</span></code> and <code class="docutils literal"><span class="pre">$application_folder</span></code>
440variables at the top of the file with the new name you’ve chosen.</p>
441<p>For the best security, both the system and any application folders
442should be placed above web root so that they are not directly accessible
443via a browser. By default, <em>.htaccess</em> files are included in each folder
444to help prevent direct access, but it is best to remove them from public
445access entirely in case the web server configuration changes or doesn’t
446abide by the <em>.htaccess</em>.</p>
447<p>If you would like to keep your views public it is also possible to move
448the views folder out of your application folder.</p>
449<p>After moving them, open your main index.php file and set the
450<code class="docutils literal"><span class="pre">$system_path</span></code>, <code class="docutils literal"><span class="pre">$application_folder</span></code> and <code class="docutils literal"><span class="pre">$view_folder</span></code> variables,
451preferably with a full path, e.g. ‘<em>/www/MyUser/system</em>’.</p>
452<p>One additional measure to take in production environments is to disable
453PHP error reporting and any other development-only functionality. In
454CodeIgniter, this can be done by setting the <code class="docutils literal"><span class="pre">ENVIRONMENT</span></code> constant, which
455is more fully described on the <a class="reference internal" href="../general/security.html"><span class="doc">security
456page</span></a>.</p>
457<p>That’s it!</p>
458<p>If you’re new to CodeIgniter, please read the <a class="reference internal" href="../overview/getting_started.html"><span class="doc">Getting
459Started</span></a> section of the User Guide
460to begin learning how to build dynamic PHP applications. Enjoy!</p>
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