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  7. <title>File Uploading Class &mdash; CodeIgniter 3.1.8 documentation</title>
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  96. <li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
  97. <li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
  98. <li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
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  102. <li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
  103. <li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
  104. <li class="toctree-l2 current"><a class="current reference internal" href="#">File Uploading Class</a></li>
  105. <li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
  106. <li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
  107. <li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
  108. <li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
  109. <li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
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  125. <li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
  126. </ul>
  127. </li>
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  130. <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
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  132. <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
  133. <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
  134. <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
  135. <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
  136. <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
  137. <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
  138. <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
  139. <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
  140. <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
  141. <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
  142. <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
  143. <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
  144. <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
  145. </ul>
  146. </li>
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  148. <ul>
  149. <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
  150. <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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  157. <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
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  164. <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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  213. <li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
  214. <li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
  215. </ul>
  216. </li>
  217. </ul>
  218. <ul>
  219. <li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
  220. <li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
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  222. <li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
  223. <li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
  224. </ul>
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  228. <li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
  229. <li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
  230. <li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developers Certificate of Origin 1.1</a></li>
  231. </ul>
  232. </li>
  233. </ul>
  234. <ul>
  235. <li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
  236. <li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
  237. <li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
  238. <li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
  239. <li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
  240. <li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
  241. <li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
  242. <li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
  243. <li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
  244. <li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
  245. <li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
  246. <li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
  247. <li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
  248. <li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
  249. <li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
  250. <li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
  251. <li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
  252. <li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
  253. <li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
  254. <li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
  255. <li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
  256. <li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
  257. <li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
  258. <li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
  259. <li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
  260. <li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
  261. <li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
  262. </ul>
  263. </li>
  264. </ul>
  265. <ul class="current">
  266. <li class="toctree-l1 current"><a class="reference internal" href="index.html">Libraries</a><ul class="current">
  267. <li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
  268. <li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
  269. <li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
  270. <li class="toctree-l2"><a class="reference internal" href="cart.html">Shopping Cart Class</a></li>
  271. <li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
  272. <li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
  273. <li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
  274. <li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
  275. <li class="toctree-l2 current"><a class="current reference internal" href="#">File Uploading Class</a></li>
  276. <li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
  277. <li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
  278. <li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
  279. <li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
  280. <li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
  281. <li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
  282. <li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
  283. <li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
  284. <li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
  285. <li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
  286. <li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
  287. <li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
  288. <li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
  289. <li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
  290. <li class="toctree-l2"><a class="reference internal" href="trackback.html">Trackback Class</a></li>
  291. <li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
  292. <li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
  293. <li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
  294. <li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
  295. <li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
  296. <li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
  297. </ul>
  298. </li>
  299. </ul>
  300. <ul>
  301. <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
  302. <li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
  303. <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
  304. <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
  305. <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
  306. <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
  307. <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
  308. <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
  309. <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
  310. <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
  311. <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
  312. <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
  313. <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
  314. <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
  315. <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
  316. </ul>
  317. </li>
  318. </ul>
  319. <ul>
  320. <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
  321. <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
  322. <li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
  323. <li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
  324. <li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
  325. <li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
  326. <li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
  327. <li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
  328. <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
  329. <li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
  330. <li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
  331. <li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
  332. <li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
  333. <li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
  334. <li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
  335. <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
  336. <li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
  337. <li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
  338. <li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
  339. <li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
  340. <li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
  341. <li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
  342. </ul>
  343. </li>
  344. </ul>
  345. </div>
  346. &nbsp;
  347. </nav>
  348. <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
  349. <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
  350. <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
  351. <a href="../index.html">CodeIgniter</a>
  352. </nav>
  353. <div class="wy-nav-content">
  354. <div class="rst-content">
  355. <div role="navigation" aria-label="breadcrumbs navigation">
  356. <ul class="wy-breadcrumbs">
  357. <li><a href="../index.html">Docs</a> &raquo;</li>
  358. <li><a href="index.html">Libraries</a> &raquo;</li>
  359. <li>File Uploading Class</li>
  360. <li class="wy-breadcrumbs-aside">
  361. </li>
  362. <div style="float:right;margin-left:5px;" id="closeMe">
  363. <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
  364. </div>
  365. </ul>
  366. <hr/>
  367. </div>
  368. <div role="main" class="document">
  369. <div class="section" id="file-uploading-class">
  370. <h1>File Uploading Class<a class="headerlink" href="#file-uploading-class" title="Permalink to this headline"></a></h1>
  371. <p>CodeIgniters File Uploading Class permits files to be uploaded. You can
  372. set various preferences, restricting the type and size of the files.</p>
  373. <div class="contents local topic" id="contents">
  374. <ul class="simple">
  375. <li><a class="reference internal" href="#the-process" id="id1">The Process</a><ul>
  376. <li><a class="reference internal" href="#creating-the-upload-form" id="id2">Creating the Upload Form</a></li>
  377. <li><a class="reference internal" href="#the-success-page" id="id3">The Success Page</a></li>
  378. <li><a class="reference internal" href="#the-controller" id="id4">The Controller</a></li>
  379. <li><a class="reference internal" href="#the-upload-directory" id="id5">The Upload Directory</a></li>
  380. <li><a class="reference internal" href="#try-it" id="id6">Try it!</a></li>
  381. </ul>
  382. </li>
  383. <li><a class="reference internal" href="#reference-guide" id="id7">Reference Guide</a><ul>
  384. <li><a class="reference internal" href="#initializing-the-upload-class" id="id8">Initializing the Upload Class</a></li>
  385. <li><a class="reference internal" href="#setting-preferences" id="id9">Setting Preferences</a></li>
  386. <li><a class="reference internal" href="#preferences" id="id10">Preferences</a></li>
  387. <li><a class="reference internal" href="#setting-preferences-in-a-config-file" id="id11">Setting preferences in a config file</a></li>
  388. </ul>
  389. </li>
  390. <li><a class="reference internal" href="#class-reference" id="id12">Class Reference</a></li>
  391. </ul>
  392. </div>
  393. <div class="custom-index container"></div><div class="section" id="the-process">
  394. <h2><a class="toc-backref" href="#id1">The Process</a><a class="headerlink" href="#the-process" title="Permalink to this headline"></a></h2>
  395. <p>Uploading a file involves the following general process:</p>
  396. <ul class="simple">
  397. <li>An upload form is displayed, allowing a user to select a file and
  398. upload it.</li>
  399. <li>When the form is submitted, the file is uploaded to the destination
  400. you specify.</li>
  401. <li>Along the way, the file is validated to make sure it is allowed to be
  402. uploaded based on the preferences you set.</li>
  403. <li>Once uploaded, the user will be shown a success message.</li>
  404. </ul>
  405. <p>To demonstrate this process here is brief tutorial. Afterward youll
  406. find reference information.</p>
  407. <div class="section" id="creating-the-upload-form">
  408. <h3><a class="toc-backref" href="#id2">Creating the Upload Form</a><a class="headerlink" href="#creating-the-upload-form" title="Permalink to this headline"></a></h3>
  409. <p>Using a text editor, create a form called upload_form.php. In it, place
  410. this code and save it to your <strong>application/views/</strong> directory:</p>
  411. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="nx">html</span><span class="o">&gt;</span>
  412. <span class="o">&lt;</span><span class="nx">head</span><span class="o">&gt;</span>
  413. <span class="o">&lt;</span><span class="nx">title</span><span class="o">&gt;</span><span class="nx">Upload</span> <span class="nx">Form</span><span class="o">&lt;/</span><span class="nx">title</span><span class="o">&gt;</span>
  414. <span class="o">&lt;/</span><span class="nx">head</span><span class="o">&gt;</span>
  415. <span class="o">&lt;</span><span class="nx">body</span><span class="o">&gt;</span>
  416. <span class="o">&lt;?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nv">$error</span><span class="p">;</span><span class="cp">?&gt;</span>
  417. <span class="cp">&lt;?php</span> <span class="k">echo</span> <span class="nx">form_open_multipart</span><span class="p">(</span><span class="s1">&#39;upload/do_upload&#39;</span><span class="p">);</span><span class="cp">?&gt;</span>
  418. <span class="p">&lt;</span><span class="nt">input</span> <span class="na">type</span><span class="o">=</span><span class="s">&quot;file&quot;</span> <span class="na">name</span><span class="o">=</span><span class="s">&quot;userfile&quot;</span> <span class="na">size</span><span class="o">=</span><span class="s">&quot;20&quot;</span> <span class="p">/&gt;</span>
  419. <span class="p">&lt;</span><span class="nt">br</span> <span class="p">/&gt;&lt;</span><span class="nt">br</span> <span class="p">/&gt;</span>
  420. <span class="p">&lt;</span><span class="nt">input</span> <span class="na">type</span><span class="o">=</span><span class="s">&quot;submit&quot;</span> <span class="na">value</span><span class="o">=</span><span class="s">&quot;upload&quot;</span> <span class="p">/&gt;</span>
  421. <span class="p">&lt;/</span><span class="nt">form</span><span class="p">&gt;</span>
  422. <span class="p">&lt;/</span><span class="nt">body</span><span class="p">&gt;</span>
  423. <span class="p">&lt;/</span><span class="nt">html</span><span class="p">&gt;</span>
  424. </pre></div>
  425. </div>
  426. <p>Youll notice we are using a form helper to create the opening form tag.
  427. File uploads require a multipart form, so the helper creates the proper
  428. syntax for you. Youll also notice we have an $error variable. This is
  429. so we can show error messages in the event the user does something
  430. wrong.</p>
  431. </div>
  432. <div class="section" id="the-success-page">
  433. <h3><a class="toc-backref" href="#id3">The Success Page</a><a class="headerlink" href="#the-success-page" title="Permalink to this headline"></a></h3>
  434. <p>Using a text editor, create a form called upload_success.php. In it,
  435. place this code and save it to your <strong>application/views/</strong> directory:</p>
  436. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="nx">html</span><span class="o">&gt;</span>
  437. <span class="o">&lt;</span><span class="nx">head</span><span class="o">&gt;</span>
  438. <span class="o">&lt;</span><span class="nx">title</span><span class="o">&gt;</span><span class="nx">Upload</span> <span class="nx">Form</span><span class="o">&lt;/</span><span class="nx">title</span><span class="o">&gt;</span>
  439. <span class="o">&lt;/</span><span class="nx">head</span><span class="o">&gt;</span>
  440. <span class="o">&lt;</span><span class="nx">body</span><span class="o">&gt;</span>
  441. <span class="o">&lt;</span><span class="nx">h3</span><span class="o">&gt;</span><span class="nx">Your</span> <span class="nb">file</span> <span class="nx">was</span> <span class="nx">successfully</span> <span class="nx">uploaded</span><span class="o">!&lt;/</span><span class="nx">h3</span><span class="o">&gt;</span>
  442. <span class="o">&lt;</span><span class="nx">ul</span><span class="o">&gt;</span>
  443. <span class="o">&lt;?</span><span class="nx">php</span> <span class="k">foreach</span> <span class="p">(</span><span class="nv">$upload_data</span> <span class="k">as</span> <span class="nv">$item</span> <span class="o">=&gt;</span> <span class="nv">$value</span><span class="p">)</span><span class="o">:</span><span class="cp">?&gt;</span>
  444. <span class="p">&lt;</span><span class="nt">li</span><span class="p">&gt;</span><span class="cp">&lt;?php</span> <span class="k">echo</span> <span class="nv">$item</span><span class="p">;</span><span class="cp">?&gt;</span>: <span class="cp">&lt;?php</span> <span class="k">echo</span> <span class="nv">$value</span><span class="p">;</span><span class="cp">?&gt;</span><span class="p">&lt;/</span><span class="nt">li</span><span class="p">&gt;</span>
  445. <span class="cp">&lt;?php</span> <span class="k">endforeach</span><span class="p">;</span> <span class="cp">?&gt;</span>
  446. <span class="p">&lt;/</span><span class="nt">ul</span><span class="p">&gt;</span>
  447. <span class="p">&lt;</span><span class="nt">p</span><span class="p">&gt;</span><span class="cp">&lt;?php</span> <span class="k">echo</span> <span class="nx">anchor</span><span class="p">(</span><span class="s1">&#39;upload&#39;</span><span class="p">,</span> <span class="s1">&#39;Upload Another File!&#39;</span><span class="p">);</span> <span class="cp">?&gt;</span><span class="p">&lt;/</span><span class="nt">p</span><span class="p">&gt;</span>
  448. <span class="p">&lt;/</span><span class="nt">body</span><span class="p">&gt;</span>
  449. <span class="p">&lt;/</span><span class="nt">html</span><span class="p">&gt;</span>
  450. </pre></div>
  451. </div>
  452. </div>
  453. <div class="section" id="the-controller">
  454. <h3><a class="toc-backref" href="#id4">The Controller</a><a class="headerlink" href="#the-controller" title="Permalink to this headline"></a></h3>
  455. <p>Using a text editor, create a controller called Upload.php. In it, place
  456. this code and save it to your <strong>application/controllers/</strong> directory:</p>
  457. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
  458. <span class="k">class</span> <span class="nc">Upload</span> <span class="k">extends</span> <span class="nx">CI_Controller</span> <span class="p">{</span>
  459. <span class="k">public</span> <span class="k">function</span> <span class="nf">__construct</span><span class="p">()</span>
  460. <span class="p">{</span>
  461. <span class="k">parent</span><span class="o">::</span><span class="na">__construct</span><span class="p">();</span>
  462. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">helper</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">&#39;form&#39;</span><span class="p">,</span> <span class="s1">&#39;url&#39;</span><span class="p">));</span>
  463. <span class="p">}</span>
  464. <span class="k">public</span> <span class="k">function</span> <span class="nf">index</span><span class="p">()</span>
  465. <span class="p">{</span>
  466. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;upload_form&#39;</span><span class="p">,</span> <span class="k">array</span><span class="p">(</span><span class="s1">&#39;error&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39; &#39;</span> <span class="p">));</span>
  467. <span class="p">}</span>
  468. <span class="k">public</span> <span class="k">function</span> <span class="nf">do_upload</span><span class="p">()</span>
  469. <span class="p">{</span>
  470. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;upload_path&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;./uploads/&#39;</span><span class="p">;</span>
  471. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;allowed_types&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;gif|jpg|png&#39;</span><span class="p">;</span>
  472. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_size&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">100</span><span class="p">;</span>
  473. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_width&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1024</span><span class="p">;</span>
  474. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_height&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">768</span><span class="p">;</span>
  475. <span class="nv">$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;upload&#39;</span><span class="p">,</span> <span class="nv">$config</span><span class="p">);</span>
  476. <span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">upload</span><span class="o">-&gt;</span><span class="na">do_upload</span><span class="p">(</span><span class="s1">&#39;userfile&#39;</span><span class="p">))</span>
  477. <span class="p">{</span>
  478. <span class="nv">$error</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">&#39;error&#39;</span> <span class="o">=&gt;</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">upload</span><span class="o">-&gt;</span><span class="na">display_errors</span><span class="p">());</span>
  479. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;upload_form&#39;</span><span class="p">,</span> <span class="nv">$error</span><span class="p">);</span>
  480. <span class="p">}</span>
  481. <span class="k">else</span>
  482. <span class="p">{</span>
  483. <span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">&#39;upload_data&#39;</span> <span class="o">=&gt;</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">upload</span><span class="o">-&gt;</span><span class="na">data</span><span class="p">());</span>
  484. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;upload_success&#39;</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>
  485. <span class="p">}</span>
  486. <span class="p">}</span>
  487. <span class="p">}</span>
  488. <span class="cp">?&gt;</span>
  489. </pre></div>
  490. </div>
  491. </div>
  492. <div class="section" id="the-upload-directory">
  493. <h3><a class="toc-backref" href="#id5">The Upload Directory</a><a class="headerlink" href="#the-upload-directory" title="Permalink to this headline"></a></h3>
  494. <p>Youll need a destination directory for your uploaded images. Create a
  495. directory at the root of your CodeIgniter installation called uploads
  496. and set its file permissions to 777.</p>
  497. </div>
  498. <div class="section" id="try-it">
  499. <h3><a class="toc-backref" href="#id6">Try it!</a><a class="headerlink" href="#try-it" title="Permalink to this headline"></a></h3>
  500. <p>To try your form, visit your site using a URL similar to this one:</p>
  501. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">example</span><span class="o">.</span><span class="nx">com</span><span class="o">/</span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">upload</span><span class="o">/</span>
  502. </pre></div>
  503. </div>
  504. <p>You should see an upload form. Try uploading an image file (either a
  505. jpg, gif, or png). If the path in your controller is correct it should
  506. work.</p>
  507. </div>
  508. </div>
  509. <div class="section" id="reference-guide">
  510. <h2><a class="toc-backref" href="#id7">Reference Guide</a><a class="headerlink" href="#reference-guide" title="Permalink to this headline"></a></h2>
  511. <div class="section" id="initializing-the-upload-class">
  512. <h3><a class="toc-backref" href="#id8">Initializing the Upload Class</a><a class="headerlink" href="#initializing-the-upload-class" title="Permalink to this headline"></a></h3>
  513. <p>Like most other classes in CodeIgniter, the Upload class is initialized
  514. in your controller using the <code class="docutils literal"><span class="pre">$this-&gt;load-&gt;library()</span></code> method:</p>
  515. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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;upload&#39;</span><span class="p">);</span>
  516. </pre></div>
  517. </div>
  518. <p>Once the Upload class is loaded, the object will be available using:
  519. $this-&gt;upload</p>
  520. </div>
  521. <div class="section" id="setting-preferences">
  522. <h3><a class="toc-backref" href="#id9">Setting Preferences</a><a class="headerlink" href="#setting-preferences" title="Permalink to this headline"></a></h3>
  523. <p>Similar to other libraries, youll control what is allowed to be upload
  524. based on your preferences. In the controller you built above you set the
  525. following preferences:</p>
  526. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;upload_path&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;./uploads/&#39;</span><span class="p">;</span>
  527. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;allowed_types&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;gif|jpg|png&#39;</span><span class="p">;</span>
  528. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_size&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;100&#39;</span><span class="p">;</span>
  529. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_width&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;1024&#39;</span><span class="p">;</span>
  530. <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_height&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;768&#39;</span><span class="p">;</span>
  531. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class=