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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]-->
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  6. <head>
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  7.   <meta charset="utf-8">
    8. 

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

  9.   
    10. 

  10.   <title>Typography Class &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.   
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  22.   
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  25.   
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  26. 

  27.   
    28. 

  28.   
    29. 

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

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  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="Libraries" href="index.html"/>
    38. 

  38.         <link rel="next" title="Unit Testing Class" href="unit_testing.html"/>
    39. 

  39.         <link rel="prev" title="Trackback Class" href="trackback.html"/> 
    40. 

  40. 

  41.   
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  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">
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  53.       <div id="pulldown-menu" class="ciNav">
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  54.         <ul>
    55. 

  55. <li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
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  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>
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  60. <li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li>
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  61. <li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
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  62. <li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
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  70. <li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
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    72. 

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

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

  74. </ul>
    75. 

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    77. 

  77. <ul>
    78. 

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

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    80. 

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

  83. </ul>
    84. 

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  88. <li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
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  89. <li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
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    94. 

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

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    96. 

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    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 class="current">
    125. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  150. <li class="toctree-l2 current"><a class="current reference internal" href="#">Typography Class</a></li>
    151. 

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

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

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

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

  155. <li class="toctree-l2"><a class="reference internal" href="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" />
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  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>
    251. 

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

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

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

  254. <li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
    255. 

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

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

  257. <li class="toctree-l2"><a class="reference internal" href="../overview/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 class="current">
    309. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  334. <li class="toctree-l2 current"><a class="current reference internal" href="#">Typography Class</a></li>
    335. 

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

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

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

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

  339. <li class="toctree-l2"><a class="reference internal" href="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>
    400. 

  400.         <a href="../index.html">CodeIgniter</a>
    401. 

  401.       </nav>
    402. 

  402. 

  403. 

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  413.     <li>Typography Class</li>
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    425. 

  425.   <div class="section" id="typography-class">
    426. 

  426. <h1>Typography Class<a class="headerlink" href="#typography-class" title="Permalink to this headline">¶</a></h1>
    427. 

  427. <p>The Typography Class provides methods that help you format text.</p>
    428. 

  428. <div class="contents local topic" id="contents">
    429. 

  429. <ul class="simple">
    430. 

  430. <li><a class="reference internal" href="#using-the-typography-class" id="id1">Using the Typography Class</a><ul>
    431. 

  431. <li><a class="reference internal" href="#initializing-the-class" id="id2">Initializing the Class</a></li>
    432. 

  432. </ul>
    433. 

  433. </li>
    434. 

  434. <li><a class="reference internal" href="#class-reference" id="id3">Class Reference</a></li>
    435. 

  435. </ul>
    436. 

  436. </div>
    437. 

  437. <div class="custom-index container"></div><div class="section" id="using-the-typography-class">
    438. 

  438. <h2><a class="toc-backref" href="#id1">Using the Typography Class</a><a class="headerlink" href="#using-the-typography-class" title="Permalink to this headline">¶</a></h2>
    439. 

  439. <div class="section" id="initializing-the-class">
    440. 

  440. <h3><a class="toc-backref" href="#id2">Initializing the Class</a><a class="headerlink" href="#initializing-the-class" title="Permalink to this headline">¶</a></h3>
    441. 

  441. <p>Like most other classes in CodeIgniter, the Typography class is
    442. 

  442. initialized in your controller using the <code class="docutils literal"><span class="pre">$this-&gt;load-&gt;library()</span></code> method:</p>
    443. 

  443. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;typography&#39;</span><span class="p">);</span>
    444. 

  444. </pre></div>
    445. 

  445. </div>
    446. 

  446. <p>Once loaded, the Typography library object will be available using:</p>
    447. 

  447. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span>
    448. 

  448. </pre></div>
    449. 

  449. </div>
    450. 

  450. </div>
    451. 

  451. </div>
    452. 

  452. <div class="section" id="class-reference">
    453. 

  453. <h2><a class="toc-backref" href="#id3">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
    454. 

  454. <dl class="class">
    455. 

  455. <dt id="CI_Typography">
    456. 

  456. <em class="property">class </em><code class="descname">CI_Typography</code><a class="headerlink" href="#CI_Typography" title="Permalink to this definition">¶</a></dt>
    457. 

  457. <dd><dl class="attribute">
    458. 

  458. <dt>
    459. 

  459. <code class="descname">$protect_braced_quotes = FALSE</code></dt>
    460. 

  460. <dd><p>When using the Typography library in conjunction with the <a class="reference internal" href="parser.html"><span class="doc">Template Parser library</span></a>
    461. 

  461. it can often be desirable to protect single and double quotes within curly braces.
    462. 

  462. To enable this, set the <code class="docutils literal"><span class="pre">protect_braced_quotes</span></code> class property to TRUE.</p>
    463. 

  463. <p>Usage example:</p>
    464. 

  464. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;typography&#39;</span><span class="p">);</span>
    465. 

  465. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">protect_braced_quotes</span> <span class="o">=</span> <span class="k">TRUE</span><span class="p">;</span>
    466. 

  466. </pre></div>
    467. 

  467. </div>
    468. 

  468. </dd></dl>
    469. 

  469. 

  470. <dl class="method">
    471. 

  471. <dt id="CI_Typography::auto_typography">
    472. 

  472. <code class="descname">auto_typography</code><span class="sig-paren">(</span><em>$str</em><span class="optional">[</span>, <em>$reduce_linebreaks = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Typography::auto_typography" title="Permalink to this definition">¶</a></dt>
    473. 

  473. <dd><table class="docutils field-list" frame="void" rules="none">
    474. 

  474. <col class="field-name" />
    475. 

  475. <col class="field-body" />
    476. 

  476. <tbody valign="top">
    477. 

  477. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    478. 

  478. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    479. 

  479. <li><strong>$reduce_linebreaks</strong> (<em>bool</em>) – Whether to reduce consecutive linebreaks</li>
    480. 

  480. </ul>
    481. 

  481. </td>
    482. 

  482. </tr>
    483. 

  483. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">HTML typography-safe string</p>
    484. 

  484. </td>
    485. 

  485. </tr>
    486. 

  486. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    487. 

  487. </td>
    488. 

  488. </tr>
    489. 

  489. </tbody>
    490. 

  490. </table>
    491. 

  491. <p>Formats text so that it is semantically and typographically correct HTML.
    492. 

  492. Takes a string as input and returns it with the following formatting:</p>
    493. 

  493. <blockquote>
    494. 

  494. <div><ul class="simple">
    495. 

  495. <li>Surrounds paragraphs within &lt;p&gt;&lt;/p&gt; (looks for double line breaks to identify paragraphs).</li>
    496. 

  496. <li>Single line breaks are converted to &lt;br /&gt;, except those that appear within &lt;pre&gt; tags.</li>
    497. 

  497. <li>Block level elements, like &lt;div&gt; tags, are not wrapped within paragraphs, but their contained text is if it contains paragraphs.</li>
    498. 

  498. <li>Quotes are converted to correctly facing curly quote entities, except those that appear within tags.</li>
    499. 

  499. <li>Apostrophes are converted to curly apostrophe entities.</li>
    500. 

  500. <li>Double dashes (either like – this or like–this) are converted to em—dashes.</li>
    501. 

  501. <li>Three consecutive periods either preceding or following a word are converted to ellipsis (…).</li>
    502. 

  502. <li>Double spaces following sentences are converted to non-breaking spaces to mimic double spacing.</li>
    503. 

  503. </ul>
    504. 

  504. </div></blockquote>
    505. 

  505. <p>Usage example:</p>
    506. 

  506. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">auto_typography</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span>
    507. 

  507. </pre></div>
    508. 

  508. </div>
    509. 

  509. <p>There is one optional parameter that determines whether the parser should reduce more than two consecutive line breaks down to two.
    510. 

  510. Pass boolean TRUE to enable reducing line breaks:</p>
    511. 

  511. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">auto_typography</span><span class="p">(</span><span class="nv">$string</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
    512. 

  512. </pre></div>
    513. 

  513. </div>
    514. 

  514. <div class="admonition note">
    515. 

  515. <p class="first admonition-title">Note</p>
    516. 

  516. <p class="last">Typographic formatting can be processor intensive, particularly if you have a lot of content being formatted.
    517. 

  517. If you choose to use this method you may want to consider <a class="reference internal" href="../general/caching.html"><span class="doc">caching</span></a> your pages.</p>
    518. 

  518. </div>
    519. 

  519. </dd></dl>
    520. 

  520. 

  521. <dl class="method">
    522. 

  522. <dt id="CI_Typography::format_characters">
    523. 

  523. <code class="descname">format_characters</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Typography::format_characters" title="Permalink to this definition">¶</a></dt>
    524. 

  524. <dd><table class="docutils field-list" frame="void" rules="none">
    525. 

  525. <col class="field-name" />
    526. 

  526. <col class="field-body" />
    527. 

  527. <tbody valign="top">
    528. 

  528. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    529. 

  529. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    530. 

  530. </ul>
    531. 

  531. </td>
    532. 

  532. </tr>
    533. 

  533. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Formatted string</p>
    534. 

  534. </td>
    535. 

  535. </tr>
    536. 

  536. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    537. 

  537. </td>
    538. 

  538. </tr>
    539. 

  539. </tbody>
    540. 

  540. </table>
    541. 

  541. <p>This method is similar to <code class="docutils literal"><span class="pre">auto_typography()</span></code> above, except that it only does character conversion:</p>
    542. 

  542. <blockquote>
    543. 

  543. <div><ul class="simple">
    544. 

  544. <li>Quotes are converted to correctly facing curly quote entities, except those that appear within tags.</li>
    545. 

  545. <li>Apostrophes are converted to curly apostrophe entities.</li>
    546. 

  546. <li>Double dashes (either like – this or like–this) are converted to em—dashes.</li>
    547. 

  547. <li>Three consecutive periods either preceding or following a word are converted to ellipsis (…).</li>
    548. 

  548. <li>Double spaces following sentences are converted to non-breaking spaces to mimic double spacing.</li>
    549. 

  549. </ul>
    550. 

  550. </div></blockquote>
    551. 

  551. <p>Usage example:</p>
    552. 

  552. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">format_characters</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span>
    553. 

  553. </pre></div>
    554. 

  554. </div>
    555. 

  555. </dd></dl>
    556. 

  556. 

  557. <dl class="method">
    558. 

  558. <dt id="CI_Typography::nl2br_except_pre">
    559. 

  559. <code class="descname">nl2br_except_pre</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Typography::nl2br_except_pre" title="Permalink to this definition">¶</a></dt>
    560. 

  560. <dd><table class="docutils field-list" frame="void" rules="none">
    561. 

  561. <col class="field-name" />
    562. 

  562. <col class="field-body" />
    563. 

  563. <tbody valign="top">
    564. 

  564. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    565. 

  565. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    566. 

  566. </ul>
    567. 

  567. </td>
    568. 

  568. </tr>
    569. 

  569. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Formatted string</p>
    570. 

  570. </td>
    571. 

  571. </tr>
    572. 

  572. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    573. 

  573. </td>
    574. 

  574. </tr>
    575. 

  575. </tbody>
    576. 

  576. </table>
    577. 

  577. <p>Converts newlines to &lt;br /&gt; tags unless they appear within &lt;pre&gt; tags.
    578. 

  578. This method is identical to the native PHP <code class="xref php php-func docutils literal"><span class="pre">nl2br()</span></code> function, except that it ignores &lt;pre&gt; tags.</p>
    579. 

  579. <p>Usage example:</p>
    580. 

  580. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">nl2br_except_pre</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span>
    581. 

  581. </pre></div>
    582. 

  582. </div>
    583. 

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    584. 

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