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features.html

features.html 36 KB
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  1. 

  2. 

  3. <!DOCTYPE html>
    4. 

  4. <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
    5. 

  5. <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
    6. 

  6. <head>
    7. 

  7.   <meta charset="utf-8">
    8. 

  8.   <meta name="viewport" content="width=device-width, initial-scale=1.0">
    9. 

  9.   
    10. 

  10.   <title>CodeIgniter Features &mdash; CodeIgniter 3.1.11 documentation</title>
    11. 

  11.   
    12. 

  12. 

  13.   
    14. 

  14.   
    15. 

  15.     <link rel="shortcut icon" href="../_static/ci-icon.ico"/>
    16. 

  16.   
    17. 

  17. 

  18.   
    19. 

  19.   <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'>
    20. 

  20. 

  21.   
    22. 

  22.   
    23. 

  23.     
    24. 

  24. 

  25.   
    26. 

  26. 

  27.   
    28. 

  28.   
    29. 

  29.     <link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" />
    30. 

  30.   
    31. 

  31. 

  32.   
    33. 

  33.         <link rel="index" title="Index"
    34. 

  34.               href="../genindex.html"/>
    35. 

  35.         <link rel="search" title="Search" href="../search.html"/>
    36. 

  36.     <link rel="top" title="CodeIgniter 3.1.11 documentation" href="../index.html"/>
    37. 

  37.         <link rel="up" title="CodeIgniter Overview" href="index.html"/>
    38. 

  38.         <link rel="next" title="Application Flow Chart" href="appflow.html"/>
    39. 

  39.         <link rel="prev" title="CodeIgniter at a Glance" href="at_a_glance.html"/> 
    40. 

  40. 

  41.   
    42. 

  42.   <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
    43. 

  43. 

  44. </head>
    45. 

  45. 

  46. <body class="wy-body-for-nav" role="document">
    47. 

  47. 

  48.   <div id="nav">
    49. 

  49.   <div id="nav_inner">
    50. 

  50.     
    51. 

  51.     
    52. 

  52.     
    53. 

  53.       <div id="pulldown-menu" class="ciNav">
    54. 

  54.         <ul>
    55. 

  55. <li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
    56. 

  56. </ul>
    57. 

  57. <ul>
    58. 

  58. <li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul>
    59. 

  59. <li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li>
    60. 

  60. <li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li>
    61. 

  61. <li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
    62. 

  62. <li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
    63. 

  63. </ul>
    64. 

  64. </li>
    65. 

  65. </ul>
    66. 

  66. <ul class="current">
    67. 

  67. <li class="toctree-l1 current"><a class="reference internal" href="index.html">CodeIgniter Overview</a><ul class="current">
    68. 

  68. <li class="toctree-l2"><a class="reference internal" href="getting_started.html">Getting Started</a></li>
    69. 

  69. <li class="toctree-l2"><a class="reference internal" href="at_a_glance.html">CodeIgniter at a Glance</a></li>
    70. 

  70. <li class="toctree-l2 current"><a class="current reference internal" href="#">Supported Features</a></li>
    71. 

  71. <li class="toctree-l2"><a class="reference internal" href="appflow.html">Application Flow Chart</a></li>
    72. 

  72. <li class="toctree-l2"><a class="reference internal" href="mvc.html">Model-View-Controller</a></li>
    73. 

  73. <li class="toctree-l2"><a class="reference internal" href="goals.html">Architectural Goals</a></li>
    74. 

  74. </ul>
    75. 

  75. </li>
    76. 

  76. </ul>
    77. 

  77. <ul>
    78. 

  78. <li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
    79. 

  79. <li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
    80. 

  80. <li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li>
    81. 

  81. <li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
    82. 

  82. <li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
    83. 

  83. </ul>
    84. 

  84. </li>
    85. 

  85. </ul>
    86. 

  86. <ul>
    87. 

  87. <li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
    88. 

  88. <li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
    89. 

  89. <li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
    90. 

  90. </ul>
    91. 

  91. </li>
    92. 

  92. </ul>
    93. 

  93. <ul>
    94. 

  94. <li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
    95. 

  95. <li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
    96. 

  96. <li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
    97. 

  97. <li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
    98. 

  98. <li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
    99. 

  99. <li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
    100. 

  100. <li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
    101. 

  101. <li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
    102. 

  102. <li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
    103. 

  103. <li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
    104. 

  104. <li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
    105. 

  105. <li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
    106. 

  106. <li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
    107. 

  107. <li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
    108. 

  108. <li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
    109. 

  109. <li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
    110. 

  110. <li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
    111. 

  111. <li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
    112. 

  112. <li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
    113. 

  113. <li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
    114. 

  114. <li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
    115. 

  115. <li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
    116. 

  116. <li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
    117. 

  117. <li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
    118. 

  118. <li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
    119. 

  119. <li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
    120. 

  120. <li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
    121. 

  121. </ul>
    122. 

  122. </li>
    123. 

  123. </ul>
    124. 

  124. <ul>
    125. 

  125. <li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Libraries</a><ul>
    126. 

  126. <li class="toctree-l2"><a class="reference internal" href="../libraries/benchmark.html">Benchmarking Class</a></li>
    127. 

  127. <li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
    128. 

  128. <li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li>
    129. 

  129. <li class="toctree-l2"><a class="reference internal" href="../libraries/cart.html">Shopping Cart Class</a></li>
    130. 

  130. <li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li>
    131. 

  131. <li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
    132. 

  132. <li class="toctree-l2"><a class="reference internal" href="../libraries/encrypt.html">Encrypt Class</a></li>
    133. 

  133. <li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Library</a></li>
    134. 

  134. <li class="toctree-l2"><a class="reference internal" href="../libraries/file_uploading.html">File Uploading Class</a></li>
    135. 

  135. <li class="toctree-l2"><a class="reference internal" href="../libraries/form_validation.html">Form Validation</a></li>
    136. 

  136. <li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li>
    137. 

  137. <li class="toctree-l2"><a class="reference internal" href="../libraries/image_lib.html">Image Manipulation Class</a></li>
    138. 

  138. <li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li>
    139. 

  139. <li class="toctree-l2"><a class="reference internal" href="../libraries/javascript.html">Javascript Class</a></li>
    140. 

  140. <li class="toctree-l2"><a class="reference internal" href="../libraries/language.html">Language Class</a></li>
    141. 

  141. <li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li>
    142. 

  142. <li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li>
    143. 

  143. <li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li>
    144. 

  144. <li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li>
    145. 

  145. <li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li>
    146. 

  146. <li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li>
    147. 

  147. <li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
    148. 

  148. <li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li>
    149. 

  149. <li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li>
    150. 

  150. <li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li>
    151. 

  151. <li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li>
    152. 

  152. <li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li>
    153. 

  153. <li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
    154. 

  154. <li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
    155. 

  155. <li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li>
    156. 

  156. </ul>
    157. 

  157. </li>
    158. 

  158. </ul>
    159. 

  159. <ul>
    160. 

  160. <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
    161. 

  161. <li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
    162. 

  162. <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
    163. 

  163. <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
    164. 

  164. <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
    165. 

  165. <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
    166. 

  166. <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
    167. 

  167. <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
    168. 

  168. <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
    169. 

  169. <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
    170. 

  170. <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
    171. 

  171. <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
    172. 

  172. <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
    173. 

  173. <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
    174. 

  174. <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
    175. 

  175. </ul>
    176. 

  176. </li>
    177. 

  177. </ul>
    178. 

  178. <ul>
    179. 

  179. <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
    180. 

  180. <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
    181. 

  181. <li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
    182. 

  182. <li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
    183. 

  183. <li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
    184. 

  184. <li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
    185. 

  185. <li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
    186. 

  186. <li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
    187. 

  187. <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
    188. 

  188. <li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
    189. 

  189. <li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
    190. 

  190. <li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
    191. 

  191. <li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
    192. 

  192. <li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
    193. 

  193. <li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
    194. 

  194. <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
    195. 

  195. <li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
    196. 

  196. <li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
    197. 

  197. <li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
    198. 

  198. <li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
    199. 

  199. <li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
    200. 

  200. <li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
    201. 

  201. </ul>
    202. 

  202. </li>
    203. 

  203. </ul>
    204. 

  204. 

  205.       </div>
    206. 

  206.     
    207. 

  207.       
    208. 

  208.   </div>
    209. 

  209. </div>
    210. 

  210. <div id="nav2">
    211. 

  211.   <a href="#" id="openToc">
    212. 

  212.     <img src="data:image/jpeg;base64,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" title="Toggle Table of Contents" alt="Toggle Table of Contents" />
    213. 

  213.   </a>
    214. 

  214. </div>
    215. 

  215. 

  216.   <div class="wy-grid-for-nav">
    217. 

  217. 

  218.     
    219. 

  219.     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
    220. 

  220.       <div class="wy-side-nav-search">
    221. 

  221.         
    222. 

  222.           <a href="../index.html" class="fa fa-home"> CodeIgniter</a>
    223. 

  223.         
    224. 

  224.         
    225. 

  225. <div role="search">
    226. 

  226.   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
    227. 

  227.     <input type="text" name="q" placeholder="Search docs" />
    228. 

  228.     <input type="hidden" name="check_keywords" value="yes" />
    229. 

  229.     <input type="hidden" name="area" value="default" />
    230. 

  230.   </form>
    231. 

  231. </div>
    232. 

  232.       </div>
    233. 

  233. 

  234.       <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
    235. 

  235.         
    236. 

  236.           
    237. 

  237.           
    238. 

  238.               <ul>
    239. 

  239. <li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
    240. 

  240. </ul>
    241. 

  241. <ul>
    242. 

  242. <li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul>
    243. 

  243. <li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li>
    244. 

  244. <li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li>
    245. 

  245. <li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
    246. 

  246. <li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
    247. 

  247. </ul>
    248. 

  248. </li>
    249. 

  249. </ul>
    250. 

  250. <ul class="current">
    251. 

  251. <li class="toctree-l1 current"><a class="reference internal" href="index.html">CodeIgniter Overview</a><ul class="current">
    252. 

  252. <li class="toctree-l2"><a class="reference internal" href="getting_started.html">Getting Started</a></li>
    253. 

  253. <li class="toctree-l2"><a class="reference internal" href="at_a_glance.html">CodeIgniter at a Glance</a></li>
    254. 

  254. <li class="toctree-l2 current"><a class="current reference internal" href="#">Supported Features</a></li>
    255. 

  255. <li class="toctree-l2"><a class="reference internal" href="appflow.html">Application Flow Chart</a></li>
    256. 

  256. <li class="toctree-l2"><a class="reference internal" href="mvc.html">Model-View-Controller</a></li>
    257. 

  257. <li class="toctree-l2"><a class="reference internal" href="goals.html">Architectural Goals</a></li>
    258. 

  258. </ul>
    259. 

  259. </li>
    260. 

  260. </ul>
    261. 

  261. <ul>
    262. 

  262. <li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
    263. 

  263. <li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
    264. 

  264. <li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li>
    265. 

  265. <li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
    266. 

  266. <li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
    267. 

  267. </ul>
    268. 

  268. </li>
    269. 

  269. </ul>
    270. 

  270. <ul>
    271. 

  271. <li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
    272. 

  272. <li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
    273. 

  273. <li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
    274. 

  274. </ul>
    275. 

  275. </li>
    276. 

  276. </ul>
    277. 

  277. <ul>
    278. 

  278. <li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
    279. 

  279. <li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
    280. 

  280. <li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
    281. 

  281. <li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
    282. 

  282. <li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
    283. 

  283. <li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
    284. 

  284. <li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
    285. 

  285. <li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
    286. 

  286. <li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
    287. 

  287. <li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
    288. 

  288. <li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
    289. 

  289. <li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
    290. 

  290. <li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
    291. 

  291. <li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
    292. 

  292. <li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
    293. 

  293. <li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
    294. 

  294. <li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
    295. 

  295. <li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
    296. 

  296. <li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
    297. 

  297. <li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
    298. 

  298. <li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
    299. 

  299. <li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
    300. 

  300. <li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
    301. 

  301. <li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
    302. 

  302. <li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
    303. 

  303. <li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
    304. 

  304. <li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
    305. 

  305. </ul>
    306. 

  306. </li>
    307. 

  307. </ul>
    308. 

  308. <ul>
    309. 

  309. <li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Libraries</a><ul>
    310. 

  310. <li class="toctree-l2"><a class="reference internal" href="../libraries/benchmark.html">Benchmarking Class</a></li>
    311. 

  311. <li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
    312. 

  312. <li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li>
    313. 

  313. <li class="toctree-l2"><a class="reference internal" href="../libraries/cart.html">Shopping Cart Class</a></li>
    314. 

  314. <li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li>
    315. 

  315. <li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
    316. 

  316. <li class="toctree-l2"><a class="reference internal" href="../libraries/encrypt.html">Encrypt Class</a></li>
    317. 

  317. <li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Library</a></li>
    318. 

  318. <li class="toctree-l2"><a class="reference internal" href="../libraries/file_uploading.html">File Uploading Class</a></li>
    319. 

  319. <li class="toctree-l2"><a class="reference internal" href="../libraries/form_validation.html">Form Validation</a></li>
    320. 

  320. <li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li>
    321. 

  321. <li class="toctree-l2"><a class="reference internal" href="../libraries/image_lib.html">Image Manipulation Class</a></li>
    322. 

  322. <li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li>
    323. 

  323. <li class="toctree-l2"><a class="reference internal" href="../libraries/javascript.html">Javascript Class</a></li>
    324. 

  324. <li class="toctree-l2"><a class="reference internal" href="../libraries/language.html">Language Class</a></li>
    325. 

  325. <li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li>
    326. 

  326. <li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li>
    327. 

  327. <li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li>
    328. 

  328. <li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li>
    329. 

  329. <li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li>
    330. 

  330. <li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li>
    331. 

  331. <li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
    332. 

  332. <li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li>
    333. 

  333. <li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li>
    334. 

  334. <li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li>
    335. 

  335. <li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li>
    336. 

  336. <li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li>
    337. 

  337. <li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
    338. 

  338. <li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
    339. 

  339. <li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li>
    340. 

  340. </ul>
    341. 

  341. </li>
    342. 

  342. </ul>
    343. 

  343. <ul>
    344. 

  344. <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
    345. 

  345. <li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
    346. 

  346. <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
    347. 

  347. <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
    348. 

  348. <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
    349. 

  349. <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
    350. 

  350. <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
    351. 

  351. <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
    352. 

  352. <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
    353. 

  353. <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
    354. 

  354. <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
    355. 

  355. <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
    356. 

  356. <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
    357. 

  357. <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
    358. 

  358. <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
    359. 

  359. </ul>
    360. 

  360. </li>
    361. 

  361. </ul>
    362. 

  362. <ul>
    363. 

  363. <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
    364. 

  364. <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
    365. 

  365. <li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
    366. 

  366. <li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
    367. 

  367. <li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
    368. 

  368. <li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
    369. 

  369. <li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
    370. 

  370. <li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
    371. 

  371. <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
    372. 

  372. <li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
    373. 

  373. <li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
    374. 

  374. <li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
    375. 

  375. <li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
    376. 

  376. <li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
    377. 

  377. <li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
    378. 

  378. <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
    379. 

  379. <li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
    380. 

  380. <li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
    381. 

  381. <li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
    382. 

  382. <li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
    383. 

  383. <li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
    384. 

  384. <li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
    385. 

  385. </ul>
    386. 

  386. </li>
    387. 

  387. </ul>
    388. 

  388. 

  389.           
    390. 

  390.         
    391. 

  391.       </div>
    392. 

  392.       &nbsp;
    393. 

  393.     </nav>
    394. 

  394. 

  395.     <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
    396. 

  396. 

  397.       
    398. 

  398.       <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
    399. 

  399.         <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
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  411.         <li><a href="index.html">CodeIgniter Overview</a> &raquo;</li>
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  413.     <li>CodeIgniter Features</li>
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  425.   <div class="section" id="codeigniter-features">
    426. 

  426. <h1>CodeIgniter Features<a class="headerlink" href="#codeigniter-features" title="Permalink to this headline">¶</a></h1>
    427. 

  427. <p>Features in and of themselves are a very poor way to judge an
    428. 

  428. application since they tell you nothing about the user experience, or
    429. 

  429. how intuitively or intelligently it is designed. Features don’t reveal
    430. 

  430. anything about the quality of the code, or the performance, or the
    431. 

  431. attention to detail, or security practices. The only way to really judge
    432. 

  432. an app is to try it and get to know the code.
    433. 

  433. <a class="reference internal" href="../installation/index.html"><span class="doc">Installing</span></a> CodeIgniter is child’s play so
    434. 

  434. we encourage you to do just that. In the mean time here’s a list of
    435. 

  435. CodeIgniter’s main features.</p>
    436. 

  436. <ul class="simple">
    437. 

  437. <li>Model-View-Controller Based System</li>
    438. 

  438. <li>Extremely Light Weight</li>
    439. 

  439. <li>Full Featured database classes with support for several platforms.</li>
    440. 

  440. <li>Query Builder Database Support</li>
    441. 

  441. <li>Form and Data Validation</li>
    442. 

  442. <li>Security and XSS Filtering</li>
    443. 

  443. <li>Session Management</li>
    444. 

  444. <li>Email Sending Class. Supports Attachments, HTML/Text email, multiple
    445. 

  445. protocols (sendmail, SMTP, and Mail) and more.</li>
    446. 

  446. <li>Image Manipulation Library (cropping, resizing, rotating, etc.).
    447. 

  447. Supports GD, ImageMagick, and NetPBM</li>
    448. 

  448. <li>File Uploading Class</li>
    449. 

  449. <li>FTP Class</li>
    450. 

  450. <li>Localization</li>
    451. 

  451. <li>Pagination</li>
    452. 

  452. <li>Data Encryption</li>
    453. 

  453. <li>Benchmarking</li>
    454. 

  454. <li>Full Page Caching</li>
    455. 

  455. <li>Error Logging</li>
    456. 

  456. <li>Application Profiling</li>
    457. 

  457. <li>Calendaring Class</li>
    458. 

  458. <li>User Agent Class</li>
    459. 

  459. <li>Zip Encoding Class</li>
    460. 

  460. <li>Template Engine Class</li>
    461. 

  461. <li>Trackback Class</li>
    462. 

  462. <li>XML-RPC Library</li>
    463. 

  463. <li>Unit Testing Class</li>
    464. 

  464. <li>Search-engine Friendly URLs</li>
    465. 

  465. <li>Flexible URI Routing</li>
    466. 

  466. <li>Support for Hooks and Class Extensions</li>
    467. 

  467. <li>Large library of “helper” functions</li>
    468. 

  468. </ul>
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  489.         &copy; Copyright 2014 - 2019, British Columbia Institute of Technology.
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