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string_helper.html

string_helper.html 56 KB
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    135. 

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    142. 

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    143. 

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    145. 

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    146. 

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    148. 

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    149. 

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    150. 

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    151. 

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    152. 

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    154. 

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    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 class="current">
    179. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  196. <li class="toctree-l2 current"><a class="current reference internal" href="#">String Helper</a></li>
    197. 

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

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

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

  200. <li class="toctree-l2"><a class="reference internal" href="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>
    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>
    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 class="current">
    363. 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  380. <li class="toctree-l2 current"><a class="current reference internal" href="#">String Helper</a></li>
    381. 

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

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

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

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

  404.       
    405. 

  405.       <div class="wy-nav-content">
    406. 

  406.         <div class="rst-content">
    407. 

  407.           <div role="navigation" aria-label="breadcrumbs navigation">
    408. 

  408.   <ul class="wy-breadcrumbs">
    409. 

  409.     <li><a href="../index.html">Docs</a> &raquo;</li>
    410. 

  410.       
    411. 

  411.         <li><a href="index.html">Helpers</a> &raquo;</li>
    412. 

  412.       
    413. 

  413.     <li>String Helper</li>
    414. 

  414.     <li class="wy-breadcrumbs-aside">
    415. 

  415.       
    416. 

  416.     </li>
    417. 

  417.     <div style="float:right;margin-left:5px;" id="closeMe">
    418. 

  418.       <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
    419. 

  419.     </div>
    420. 

  420.   </ul>
    421. 

  421.   <hr/>
    422. 

  422. </div>
    423. 

  423.           <div role="main" class="document">
    424. 

  424.             
    425. 

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

  426. <h1>String Helper<a class="headerlink" href="#string-helper" title="Permalink to this headline">¶</a></h1>
    427. 

  427. <p>The String Helper file contains functions that assist in working with
    428. 

  428. strings.</p>
    429. 

  429. <div class="admonition important">
    430. 

  430. <p class="first admonition-title">Important</p>
    431. 

  431. <p class="last">Please note that these functions are NOT intended, nor
    432. 

  432. suitable to be used for any kind of security-related logic.</p>
    433. 

  433. </div>
    434. 

  434. <div class="contents local topic" id="contents">
    435. 

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

  436. <li><a class="reference internal" href="#loading-this-helper" id="id1">Loading this Helper</a></li>
    437. 

  437. <li><a class="reference internal" href="#available-functions" id="id2">Available Functions</a></li>
    438. 

  438. </ul>
    439. 

  439. </div>
    440. 

  440. <div class="custom-index container"></div><div class="section" id="loading-this-helper">
    441. 

  441. <h2><a class="toc-backref" href="#id1">Loading this Helper</a><a class="headerlink" href="#loading-this-helper" title="Permalink to this headline">¶</a></h2>
    442. 

  442. <p>This helper is loaded using the following code:</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">helper</span><span class="p">(</span><span class="s1">&#39;string&#39;</span><span class="p">);</span>
    444. 

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

  445. </div>
    446. 

  446. </div>
    447. 

  447. <div class="section" id="available-functions">
    448. 

  448. <h2><a class="toc-backref" href="#id2">Available Functions</a><a class="headerlink" href="#available-functions" title="Permalink to this headline">¶</a></h2>
    449. 

  449. <p>The following functions are available:</p>
    450. 

  450. <dl class="function">
    451. 

  451. <dt id="random_string">
    452. 

  452. <code class="descname">random_string</code><span class="sig-paren">(</span><span class="optional">[</span><em>$type = 'alnum'</em><span class="optional">[</span>, <em>$len = 8</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#random_string" title="Permalink to this definition">¶</a></dt>
    453. 

  453. <dd><table class="docutils field-list" frame="void" rules="none">
    454. 

  454. <col class="field-name" />
    455. 

  455. <col class="field-body" />
    456. 

  456. <tbody valign="top">
    457. 

  457. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    458. 

  458. <li><strong>$type</strong> (<em>string</em>) – Randomization type</li>
    459. 

  459. <li><strong>$len</strong> (<em>int</em>) – Output string length</li>
    460. 

  460. </ul>
    461. 

  461. </td>
    462. 

  462. </tr>
    463. 

  463. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">A random string</p>
    464. 

  464. </td>
    465. 

  465. </tr>
    466. 

  466. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    467. 

  467. </td>
    468. 

  468. </tr>
    469. 

  469. </tbody>
    470. 

  470. </table>
    471. 

  471. <p>Generates a random string based on the type and length you specify.
    472. 

  472. Useful for creating passwords or generating random hashes.</p>
    473. 

  473. <p>The first parameter specifies the type of string, the second parameter
    474. 

  474. specifies the length. The following choices are available:</p>
    475. 

  475. <ul class="simple">
    476. 

  476. <li><strong>alpha</strong>: A string with lower and uppercase letters only.</li>
    477. 

  477. <li><strong>alnum</strong>: Alpha-numeric string with lower and uppercase characters.</li>
    478. 

  478. <li><strong>basic</strong>: A random number based on <code class="docutils literal"><span class="pre">mt_rand()</span></code>.</li>
    479. 

  479. <li><strong>numeric</strong>: Numeric string.</li>
    480. 

  480. <li><strong>nozero</strong>: Numeric string with no zeros.</li>
    481. 

  481. <li><strong>md5</strong>: An encrypted random number based on <code class="docutils literal"><span class="pre">md5()</span></code> (fixed length of 32).</li>
    482. 

  482. <li><strong>sha1</strong>: An encrypted random number based on <code class="docutils literal"><span class="pre">sha1()</span></code> (fixed length of 40).</li>
    483. 

  483. </ul>
    484. 

  484. <p>Usage example:</p>
    485. 

  485. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nx">random_string</span><span class="p">(</span><span class="s1">&#39;alnum&#39;</span><span class="p">,</span> <span class="mi">16</span><span class="p">);</span>
    486. 

  486. </pre></div>
    487. 

  487. </div>
    488. 

  488. <div class="admonition note">
    489. 

  489. <p class="first admonition-title">Note</p>
    490. 

  490. <p class="last">Usage of the <em>unique</em> and <em>encrypt</em> types is DEPRECATED. They
    491. 

  491. are just aliases for <em>md5</em> and <em>sha1</em> respectively.</p>
    492. 

  492. </div>
    493. 

  493. </dd></dl>
    494. 

  494. 

  495. <dl class="function">
    496. 

  496. <dt id="increment_string">
    497. 

  497. <code class="descname">increment_string</code><span class="sig-paren">(</span><em>$str</em><span class="optional">[</span>, <em>$separator = '_'</em><span class="optional">[</span>, <em>$first = 1</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#increment_string" title="Permalink to this definition">¶</a></dt>
    498. 

  498. <dd><table class="docutils field-list" frame="void" rules="none">
    499. 

  499. <col class="field-name" />
    500. 

  500. <col class="field-body" />
    501. 

  501. <tbody valign="top">
    502. 

  502. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    503. 

  503. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    504. 

  504. <li><strong>$separator</strong> (<em>string</em>) – Separator to append a duplicate number with</li>
    505. 

  505. <li><strong>$first</strong> (<em>int</em>) – Starting number</li>
    506. 

  506. </ul>
    507. 

  507. </td>
    508. 

  508. </tr>
    509. 

  509. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An incremented string</p>
    510. 

  510. </td>
    511. 

  511. </tr>
    512. 

  512. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    513. 

  513. </td>
    514. 

  514. </tr>
    515. 

  515. </tbody>
    516. 

  516. </table>
    517. 

  517. <p>Increments a string by appending a number to it or increasing the
    518. 

  518. number. Useful for creating “copies” or a file or duplicating database
    519. 

  519. content which has unique titles or slugs.</p>
    520. 

  520. <p>Usage example:</p>
    521. 

  521. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nx">increment_string</span><span class="p">(</span><span class="s1">&#39;file&#39;</span><span class="p">,</span> <span class="s1">&#39;_&#39;</span><span class="p">);</span> <span class="c1">// &quot;file_1&quot;</span>
    522. 

  522. <span class="k">echo</span> <span class="nx">increment_string</span><span class="p">(</span><span class="s1">&#39;file&#39;</span><span class="p">,</span> <span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">);</span> <span class="c1">// &quot;file-2&quot;</span>
    523. 

  523. <span class="k">echo</span> <span class="nx">increment_string</span><span class="p">(</span><span class="s1">&#39;file_4&#39;</span><span class="p">);</span> <span class="c1">// &quot;file_5&quot;</span>
    524. 

  524. </pre></div>
    525. 

  525. </div>
    526. 

  526. </dd></dl>
    527. 

  527. 

  528. <dl class="function">
    529. 

  529. <dt id="alternator">
    530. 

  530. <code class="descname">alternator</code><span class="sig-paren">(</span><em>$args</em><span class="sig-paren">)</span><a class="headerlink" href="#alternator" title="Permalink to this definition">¶</a></dt>
    531. 

  531. <dd><table class="docutils field-list" frame="void" rules="none">
    532. 

  532. <col class="field-name" />
    533. 

  533. <col class="field-body" />
    534. 

  534. <tbody valign="top">
    535. 

  535. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    536. 

  536. <li><strong>$args</strong> (<em>mixed</em>) – A variable number of arguments</li>
    537. 

  537. </ul>
    538. 

  538. </td>
    539. 

  539. </tr>
    540. 

  540. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Alternated string(s)</p>
    541. 

  541. </td>
    542. 

  542. </tr>
    543. 

  543. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
    544. 

  544. </td>
    545. 

  545. </tr>
    546. 

  546. </tbody>
    547. 

  547. </table>
    548. 

  548. <p>Allows two or more items to be alternated between, when cycling through
    549. 

  549. a loop. Example:</p>
    550. 

  550. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">for</span> <span class="p">(</span><span class="nv">$i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nv">$i</span> <span class="o">&lt;</span> <span class="mi">10</span><span class="p">;</span> <span class="nv">$i</span><span class="o">++</span><span class="p">)</span>
    551. 

  551. <span class="p">{</span>
    552. 

  552.         <span class="k">echo</span> <span class="nx">alternator</span><span class="p">(</span><span class="s1">&#39;string one&#39;</span><span class="p">,</span> <span class="s1">&#39;string two&#39;</span><span class="p">);</span>
    553. 

  553. <span class="p">}</span>
    554. 

  554. </pre></div>
    555. 

  555. </div>
    556. 

  556. <p>You can add as many parameters as you want, and with each iteration of
    557. 

  557. your loop the next item will be returned.</p>
    558. 

  558. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">for</span> <span class="p">(</span><span class="nv">$i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nv">$i</span> <span class="o">&lt;</span> <span class="mi">10</span><span class="p">;</span> <span class="nv">$i</span><span class="o">++</span><span class="p">)</span>
    559. 

  559. <span class="p">{</span>
    560. 

  560.         <span class="k">echo</span> <span class="nx">alternator</span><span class="p">(</span><span class="s1">&#39;one&#39;</span><span class="p">,</span> <span class="s1">&#39;two&#39;</span><span class="p">,</span> <span class="s1">&#39;three&#39;</span><span class="p">,</span> <span class="s1">&#39;four&#39;</span><span class="p">,</span> <span class="s1">&#39;five&#39;</span><span class="p">);</span>
    561. 

  561. <span class="p">}</span>
    562. 

  562. </pre></div>
    563. 

  563. </div>
    564. 

  564. <div class="admonition note">
    565. 

  565. <p class="first admonition-title">Note</p>
    566. 

  566. <p class="last">To use multiple separate calls to this function simply call the
    567. 

  567. function with no arguments to re-initialize.</p>
    568. 

  568. </div>
    569. 

  569. </dd></dl>
    570. 

  570. 

  571. <dl class="function">
    572. 

  572. <dt id="repeater">
    573. 

  573. <code class="descname">repeater</code><span class="sig-paren">(</span><em>$data</em><span class="optional">[</span>, <em>$num = 1</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#repeater" title="Permalink to this definition">¶</a></dt>
    574. 

  574. <dd><table class="docutils field-list" frame="void" rules="none">
    575. 

  575. <col class="field-name" />
    576. 

  576. <col class="field-body" />
    577. 

  577. <tbody valign="top">
    578. 

  578. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    579. 

  579. <li><strong>$data</strong> (<em>string</em>) – Input</li>
    580. 

  580. <li><strong>$num</strong> (<em>int</em>) – Number of times to repeat</li>
    581. 

  581. </ul>
    582. 

  582. </td>
    583. 

  583. </tr>
    584. 

  584. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Repeated string</p>
    585. 

  585. </td>
    586. 

  586. </tr>
    587. 

  587. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    588. 

  588. </td>
    589. 

  589. </tr>
    590. 

  590. </tbody>
    591. 

  591. </table>
    592. 

  592. <p>Generates repeating copies of the data you submit. Example:</p>
    593. 

  593. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">;</span>
    594. 

  594. <span class="k">echo</span> <span class="nx">repeater</span><span class="p">(</span><span class="nv">$string</span><span class="p">,</span> <span class="mi">30</span><span class="p">);</span>
    595. 

  595. </pre></div>
    596. 

  596. </div>
    597. 

  597. <p>The above would generate 30 newlines.</p>
    598. 

  598. <div class="admonition note">
    599. 

  599. <p class="first admonition-title">Note</p>
    600. 

  600. <p class="last">This function is DEPRECATED. Use the native <code class="docutils literal"><span class="pre">str_repeat()</span></code>
    601. 

  601. instead.</p>
    602. 

  602. </div>
    603. 

  603. </dd></dl>
    604. 

  604. 

  605. <dl class="function">
    606. 

  606. <dt id="reduce_double_slashes">
    607. 

  607. <code class="descname">reduce_double_slashes</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#reduce_double_slashes" title="Permalink to this definition">¶</a></dt>
    608. 

  608. <dd><table class="docutils field-list" frame="void" rules="none">
    609. 

  609. <col class="field-name" />
    610. 

  610. <col class="field-body" />
    611. 

  611. <tbody valign="top">
    612. 

  612. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    613. 

  613. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    614. 

  614. </ul>
    615. 

  615. </td>
    616. 

  616. </tr>
    617. 

  617. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">A string with normalized slashes</p>
    618. 

  618. </td>
    619. 

  619. </tr>
    620. 

  620. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    621. 

  621. </td>
    622. 

  622. </tr>
    623. 

  623. </tbody>
    624. 

  624. </table>
    625. 

  625. <p>Converts double slashes in a string to a single slash, except those
    626. 

  626. found in URL protocol prefixes (e.g. http://).</p>
    627. 

  627. <p>Example:</p>
    628. 

  628. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="s2">&quot;http://example.com//index.php&quot;</span><span class="p">;</span>
    629. 

  629. <span class="k">echo</span> <span class="nx">reduce_double_slashes</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span> <span class="c1">// results in &quot;http://example.com/index.php&quot;</span>
    630. 

  630. </pre></div>
    631. 

  631. </div>
    632. 

  632. </dd></dl>
    633. 

  633. 

  634. <dl class="function">
    635. 

  635. <dt id="strip_slashes">
    636. 

  636. <code class="descname">strip_slashes</code><span class="sig-paren">(</span><em>$data</em><span class="sig-paren">)</span><a class="headerlink" href="#strip_slashes" title="Permalink to this definition">¶</a></dt>
    637. 

  637. <dd><table class="docutils field-list" frame="void" rules="none">
    638. 

  638. <col class="field-name" />
    639. 

  639. <col class="field-body" />
    640. 

  640. <tbody valign="top">
    641. 

  641. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    642. 

  642. <li><strong>$data</strong> (<em>mixed</em>) – Input string or an array of strings</li>
    643. 

  643. </ul>
    644. 

  644. </td>
    645. 

  645. </tr>
    646. 

  646. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">String(s) with stripped slashes</p>
    647. 

  647. </td>
    648. 

  648. </tr>
    649. 

  649. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
    650. 

  650. </td>
    651. 

  651. </tr>
    652. 

  652. </tbody>
    653. 

  653. </table>
    654. 

  654. <p>Removes any slashes from an array of strings.</p>
    655. 

  655. <p>Example:</p>
    656. 

  656. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$str</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    657. 

  657.         <span class="s1">&#39;question&#39;</span><span class="nx">  </span><span class="o">=&gt;</span> <span class="s1">&#39;Is your name O\&#39;reilly?&#39;</span><span class="p">,</span>
    658. 

  658.         <span class="s1">&#39;answer&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;No, my name is O\&#39;connor.&#39;</span>
    659. 

  659. <span class="p">);</span>
    660. 

  660. 

  661. <span class="nv">$str</span> <span class="o">=</span> <span class="nx">strip_slashes</span><span class="p">(</span><span class="nv">$str</span><span class="p">);</span>
    662. 

  662. </pre></div>
    663. 

  663. </div>
    664. 

  664. <p>The above will return the following array:</p>
    665. 

  665. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">array</span><span class="p">(</span>
    666. 

  666.         <span class="s1">&#39;question&#39;</span><span class="nx">  </span><span class="o">=&gt;</span> <span class="s2">&quot;Is your name O&#39;reilly?&quot;</span><span class="p">,</span>
    667. 

  667.         <span class="s1">&#39;answer&#39;</span> <span class="o">=&gt;</span> <span class="s2">&quot;No, my name is O&#39;connor.&quot;</span>
    668. 

  668. <span class="p">);</span>
    669. 

  669. </pre></div>
    670. 

  670. </div>
    671. 

  671. <div class="admonition note">
    672. 

  672. <p class="first admonition-title">Note</p>
    673. 

  673. <p class="last">For historical reasons, this function will also accept
    674. 

  674. and handle string inputs. This however makes it just an
    675. 

  675. alias for <code class="docutils literal"><span class="pre">stripslashes()</span></code>.</p>
    676. 

  676. </div>
    677. 

  677. </dd></dl>
    678. 

  678. 

  679. <dl class="function">
    680. 

  680. <dt id="trim_slashes">
    681. 

  681. <code class="descname">trim_slashes</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#trim_slashes" title="Permalink to this definition">¶</a></dt>
    682. 

  682. <dd><table class="docutils field-list" frame="void" rules="none">
    683. 

  683. <col class="field-name" />
    684. 

  684. <col class="field-body" />
    685. 

  685. <tbody valign="top">
    686. 

  686. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    687. 

  687. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    688. 

  688. </ul>
    689. 

  689. </td>
    690. 

  690. </tr>
    691. 

  691. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Slash-trimmed string</p>
    692. 

  692. </td>
    693. 

  693. </tr>
    694. 

  694. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    695. 

  695. </td>
    696. 

  696. </tr>
    697. 

  697. </tbody>
    698. 

  698. </table>
    699. 

  699. <p>Removes any leading/trailing slashes from a string. Example:</p>
    700. 

  700. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="s2">&quot;/this/that/theother/&quot;</span><span class="p">;</span>
    701. 

  701. <span class="k">echo</span> <span class="nx">trim_slashes</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span> <span class="c1">// results in this/that/theother</span>
    702. 

  702. </pre></div>
    703. 

  703. </div>
    704. 

  704. <div class="admonition note">
    705. 

  705. <p class="first admonition-title">Note</p>
    706. 

  706. <p class="last">This function is DEPRECATED. Use the native <code class="docutils literal"><span class="pre">trim()</span></code> instead:
    707. 

  707. |
    708. 

  708. | trim($str, ‘/’);</p>
    709. 

  709. </div>
    710. 

  710. </dd></dl>
    711. 

  711. 

  712. <dl class="function">
    713. 

  713. <dt id="reduce_multiples">
    714. 

  714. <code class="descname">reduce_multiples</code><span class="sig-paren">(</span><em>$str</em><span class="optional">[</span>, <em>$character = ''</em><span class="optional">[</span>, <em>$trim = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#reduce_multiples" title="Permalink to this definition">¶</a></dt>
    715. 

  715. <dd><table class="docutils field-list" frame="void" rules="none">
    716. 

  716. <col class="field-name" />
    717. 

  717. <col class="field-body" />
    718. 

  718. <tbody valign="top">
    719. 

  719. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    720. 

  720. <li><strong>$str</strong> (<em>string</em>) – Text to search in</li>
    721. 

  721. <li><strong>$character</strong> (<em>string</em>) – Character to reduce</li>
    722. 

  722. <li><strong>$trim</strong> (<em>bool</em>) – Whether to also trim the specified character</li>
    723. 

  723. </ul>
    724. 

  724. </td>
    725. 

  725. </tr>
    726. 

  726. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Reduced string</p>
    727. 

  727. </td>
    728. 

  728. </tr>
    729. 

  729. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    730. 

  730. </td>
    731. 

  731. </tr>
    732. 

  732. </tbody>
    733. 

  733. </table>
    734. 

  734. <p>Reduces multiple instances of a particular character occurring directly
    735. 

  735. after each other. Example:</p>
    736. 

  736. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="s2">&quot;Fred, Bill,, Joe, Jimmy&quot;</span><span class="p">;</span>
    737. 

  737. <span class="nv">$string</span> <span class="o">=</span> <span class="nx">reduce_multiples</span><span class="p">(</span><span class="nv">$string</span><span class="p">,</span><span class="s2">&quot;,&quot;</span><span class="p">);</span> <span class="c1">//results in &quot;Fred, Bill, Joe, Jimmy&quot;</span>
    738. 

  738. </pre></div>
    739. 

  739. </div>
    740. 

  740. <p>If the third parameter is set to TRUE it will remove occurrences of the
    741. 

  741. character at the beginning and the end of the string. Example:</p>
    742. 

  742. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="s2">&quot;,Fred, Bill,, Joe, Jimmy,&quot;</span><span class="p">;</span>
    743. 

  743. <span class="nv">$string</span> <span class="o">=</span> <span class="nx">reduce_multiples</span><span class="p">(</span><span class="nv">$string</span><span class="p">,</span> <span class="s2">&quot;, &quot;</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">//results in &quot;Fred, Bill, Joe, Jimmy&quot;</span>
    744. 

  744. </pre></div>
    745. 

  745. </div>
    746. 

  746. </dd></dl>
    747. 

  747. 

  748. <dl class="function">
    749. 

  749. <dt id="quotes_to_entities">
    750. 

  750. <code class="descname">quotes_to_entities</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#quotes_to_entities" title="Permalink to this definition">¶</a></dt>
    751. 

  751. <dd><table class="docutils field-list" frame="void" rules="none">
    752. 

  752. <col class="field-name" />
    753. 

  753. <col class="field-body" />
    754. 

  754. <tbody valign="top">
    755. 

  755. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    756. 

  756. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    757. 

  757. </ul>
    758. 

  758. </td>
    759. 

  759. </tr>
    760. 

  760. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">String with quotes converted to HTML entities</p>
    761. 

  761. </td>
    762. 

  762. </tr>
    763. 

  763. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    764. 

  764. </td>
    765. 

  765. </tr>
    766. 

  766. </tbody>
    767. 

  767. </table>
    768. 

  768. <p>Converts single and double quotes in a string to the corresponding HTML
    769. 

  769. entities. Example:</p>
    770. 

  770. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="s2">&quot;Joe&#39;s </span><span class="se">\&quot;</span><span class="s2">dinner</span><span class="se">\&quot;</span><span class="s2">&quot;</span><span class="p">;</span>
    771. 

  771. <span class="nv">$string</span> <span class="o">=</span> <span class="nx">quotes_to_entities</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span> <span class="c1">//results in &quot;Joe&amp;#39;s &amp;quot;dinner&amp;quot;&quot;</span>
    772. 

  772. </pre></div>
    773. 

  773. </div>
    774. 

  774. </dd></dl>
    775. 

  775. 

  776. <dl class="function">
    777. 

  777. <dt id="strip_quotes">
    778. 

  778. <code class="descname">strip_quotes</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#strip_quotes" title="Permalink to this definition">¶</a></dt>
    779. 

  779. <dd><table class="docutils field-list" frame="void" rules="none">
    780. 

  780. <col class="field-name" />
    781. 

  781. <col class="field-body" />
    782. 

  782. <tbody valign="top">
    783. 

  783. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    784. 

  784. <li><strong>$str</strong> (<em>string</em>) – Input string</li>
    785. 

  785. </ul>
    786. 

  786. </td>
    787. 

  787. </tr>
    788. 

  788. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">String with quotes stripped</p>
    789. 

  789. </td>
    790. 

  790. </tr>
    791. 

  791. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    792. 

  792. </td>
    793. 

  793. </tr>
    794. 

  794. </tbody>
    795. 

  795. </table>
    796. 

  796. <p>Removes single and double quotes from a string. Example:</p>
    797. 

  797. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="s2">&quot;Joe&#39;s </span><span class="se">\&quot;</span><span class="s2">dinner</span><span class="se">\&quot;</span><span class="s2">&quot;</span><span class="p">;</span>
    798. 

  798. <span class="nv">$string</span> <span class="o">=</span> <span class="nx">strip_quotes</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span> <span class="c1">//results in &quot;Joes dinner&quot;</span>
    799. 

  799. </pre></div>
    800. 

  800. </div>
    801. 

  801. </dd></dl>
    802. 

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