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+<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
+</ul>
+</li>
+</ul>
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
+</ul>
+</li>
+</ul>
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
+</ul>
+</li>
+</ul>
+<ul class="current">
+<li class="toctree-l1 current"><a class="reference internal" href="index.html">Libraries</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
+<li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cart.html">Shopping Cart Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">File Uploading Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
+<li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="trackback.html">Trackback Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
+<li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
+</ul>
+</li>
+</ul>
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
+</ul>
+</li>
+</ul>
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
+</ul>
+</li>
+</ul>
+
+
+
+ </div>
+ &nbsp;
+ </nav>
+
+ <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
+
+
+ <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
+ <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
+ <a href="../index.html">CodeIgniter</a>
+ </nav>
+
+
+
+ <div class="wy-nav-content">
+ <div class="rst-content">
+ <div role="navigation" aria-label="breadcrumbs navigation">
+ <ul class="wy-breadcrumbs">
+ <li><a href="../index.html">Docs</a> &raquo;</li>
+
+ <li><a href="index.html">Libraries</a> &raquo;</li>
+
+ <li>File Uploading Class</li>
+ <li class="wy-breadcrumbs-aside">
+
+ </li>
+ <div style="float:right;margin-left:5px;" id="closeMe">
+ <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
+ </div>
+ </ul>
+ <hr/>
+</div>
+ <div role="main" class="document">
+
+ <div class="section" id="file-uploading-class">
+<h1>File Uploading Class<a class="headerlink" href="#file-uploading-class" title="Permalink to this headline">¶</a></h1>
+<p>CodeIgniter’s File Uploading Class permits files to be uploaded. You can
+set various preferences, restricting the type and size of the files.</p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#the-process" id="id1">The Process</a><ul>
+<li><a class="reference internal" href="#creating-the-upload-form" id="id2">Creating the Upload Form</a></li>
+<li><a class="reference internal" href="#the-success-page" id="id3">The Success Page</a></li>
+<li><a class="reference internal" href="#the-controller" id="id4">The Controller</a></li>
+<li><a class="reference internal" href="#the-upload-directory" id="id5">The Upload Directory</a></li>
+<li><a class="reference internal" href="#try-it" id="id6">Try it!</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#reference-guide" id="id7">Reference Guide</a><ul>
+<li><a class="reference internal" href="#initializing-the-upload-class" id="id8">Initializing the Upload Class</a></li>
+<li><a class="reference internal" href="#setting-preferences" id="id9">Setting Preferences</a></li>
+<li><a class="reference internal" href="#preferences" id="id10">Preferences</a></li>
+<li><a class="reference internal" href="#setting-preferences-in-a-config-file" id="id11">Setting preferences in a config file</a></li>
+</ul>
+</li>
+<li><a class="reference internal" href="#class-reference" id="id12">Class Reference</a></li>
+</ul>
+</div>
+<div class="custom-index container"></div><div class="section" id="the-process">
+<h2><a class="toc-backref" href="#id1">The Process</a><a class="headerlink" href="#the-process" title="Permalink to this headline">¶</a></h2>
+<p>Uploading a file involves the following general process:</p>
+<ul class="simple">
+<li>An upload form is displayed, allowing a user to select a file and
+upload it.</li>
+<li>When the form is submitted, the file is uploaded to the destination
+you specify.</li>
+<li>Along the way, the file is validated to make sure it is allowed to be
+uploaded based on the preferences you set.</li>
+<li>Once uploaded, the user will be shown a success message.</li>
+</ul>
+<p>To demonstrate this process here is brief tutorial. Afterward you’ll
+find reference information.</p>
+<div class="section" id="creating-the-upload-form">
+<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>
+<p>Using a text editor, create a form called upload_form.php. In it, place
+this code and save it to your <strong>application/views/</strong> directory:</p>
+<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>
+<span class="o">&lt;</span><span class="nx">head</span><span class="o">&gt;</span>
+<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>
+<span class="o">&lt;/</span><span class="nx">head</span><span class="o">&gt;</span>
+<span class="o">&lt;</span><span class="nx">body</span><span class="o">&gt;</span>
+
+<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>
+
+<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>
+
+<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>
+
+<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>
+
+<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>
+
+<span class="p">&lt;/</span><span class="nt">form</span><span class="p">&gt;</span>
+
+<span class="p">&lt;/</span><span class="nt">body</span><span class="p">&gt;</span>
+<span class="p">&lt;/</span><span class="nt">html</span><span class="p">&gt;</span>
+</pre></div>
+</div>
+<p>You’ll notice we are using a form helper to create the opening form tag.
+File uploads require a multipart form, so the helper creates the proper
+syntax for you. You’ll also notice we have an $error variable. This is
+so we can show error messages in the event the user does something
+wrong.</p>
+</div>
+<div class="section" id="the-success-page">
+<h3><a class="toc-backref" href="#id3">The Success Page</a><a class="headerlink" href="#the-success-page" title="Permalink to this headline">¶</a></h3>
+<p>Using a text editor, create a form called upload_success.php. In it,
+place this code and save it to your <strong>application/views/</strong> directory:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="nx">html</span><span class="o">&gt;</span>
+<span class="o">&lt;</span><span class="nx">head</span><span class="o">&gt;</span>
+<span class="o">&lt;</span><span class="nx">title</span><span class="o">&gt;</span><span class="nx">Upload</span> <span class="nx">Form</span><span class="o">&lt;/</span><span class="nx">title</span><span class="o">&gt;</span>
+<span class="o">&lt;/</span><span class="nx">head</span><span class="o">&gt;</span>
+<span class="o">&lt;</span><span class="nx">body</span><span class="o">&gt;</span>
+
+<span class="o">&lt;</span><span class="nx">h3</span><span class="o">&gt;</span><span class="nx">Your</span> <span class="nb">file</span> <span class="nx">was</span> <span class="nx">successfully</span> <span class="nx">uploaded</span><span class="o">!&lt;/</span><span class="nx">h3</span><span class="o">&gt;</span>
+
+<span class="o">&lt;</span><span class="nx">ul</span><span class="o">&gt;</span>
+<span class="o">&lt;?</span><span class="nx">php</span> <span class="k">foreach</span> <span class="p">(</span><span class="nv">$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>
+<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>
+<span class="cp">&lt;?php</span> <span class="k">endforeach</span><span class="p">;</span> <span class="cp">?&gt;</span>
+<span class="p">&lt;/</span><span class="nt">ul</span><span class="p">&gt;</span>
+
+<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>
+
+<span class="p">&lt;/</span><span class="nt">body</span><span class="p">&gt;</span>
+<span class="p">&lt;/</span><span class="nt">html</span><span class="p">&gt;</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="the-controller">
+<h3><a class="toc-backref" href="#id4">The Controller</a><a class="headerlink" href="#the-controller" title="Permalink to this headline">¶</a></h3>
+<p>Using a text editor, create a controller called Upload.php. In it, place
+this code and save it to your <strong>application/controllers/</strong> directory:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
+
+<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>
+
+ <span class="k">public</span> <span class="k">function</span> <span class="nf">__construct</span><span class="p">()</span>
+ <span class="p">{</span>
+ <span class="k">parent</span><span class="o">::</span><span class="na">__construct</span><span class="p">();</span>
+ <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">helper</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">&#39;form&#39;</span><span class="p">,</span> <span class="s1">&#39;url&#39;</span><span class="p">));</span>
+ <span class="p">}</span>
+
+ <span class="k">public</span> <span class="k">function</span> <span class="nf">index</span><span class="p">()</span>
+ <span class="p">{</span>
+ <span class="nv">$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>
+ <span class="p">}</span>
+
+ <span class="k">public</span> <span class="k">function</span> <span class="nf">do_upload</span><span class="p">()</span>
+ <span class="p">{</span>
+ <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;upload_path&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;./uploads/&#39;</span><span class="p">;</span>
+ <span class="nv">$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>
+ <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_size&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">100</span><span class="p">;</span>
+ <span class="nv">$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>
+ <span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_height&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="mi">768</span><span class="p">;</span>
+
+ <span class="nv">$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">$config</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$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>
+ <span class="p">{</span>
+ <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>
+
+ <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>
+ <span class="p">}</span>
+ <span class="k">else</span>
+ <span class="p">{</span>
+ <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>
+
+ <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>
+ <span class="p">}</span>
+ <span class="p">}</span>
+<span class="p">}</span>
+<span class="cp">?&gt;</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="the-upload-directory">
+<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>
+<p>You’ll need a destination directory for your uploaded images. Create a
+directory at the root of your CodeIgniter installation called uploads
+and set its file permissions to 777.</p>
+</div>
+<div class="section" id="try-it">
+<h3><a class="toc-backref" href="#id6">Try it!</a><a class="headerlink" href="#try-it" title="Permalink to this headline">¶</a></h3>
+<p>To try your form, visit your site using a URL similar to this one:</p>
+<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>
+</pre></div>
+</div>
+<p>You should see an upload form. Try uploading an image file (either a
+jpg, gif, or png). If the path in your controller is correct it should
+work.</p>
+</div>
+</div>
+<div class="section" id="reference-guide">
+<h2><a class="toc-backref" href="#id7">Reference Guide</a><a class="headerlink" href="#reference-guide" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="initializing-the-upload-class">
+<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>
+<p>Like most other classes in CodeIgniter, the Upload class is initialized
+in your controller using the <code class="docutils literal"><span class="pre">$this-&gt;load-&gt;library()</span></code> method:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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>
+</pre></div>
+</div>
+<p>Once the Upload class is loaded, the object will be available using:
+$this-&gt;upload</p>
+</div>
+<div class="section" id="setting-preferences">
+<h3><a class="toc-backref" href="#id9">Setting Preferences</a><a class="headerlink" href="#setting-preferences" title="Permalink to this headline">¶</a></h3>
+<p>Similar to other libraries, you’ll control what is allowed to be upload
+based on your preferences. In the controller you built above you set the
+following preferences:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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>
+<span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;allowed_types&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;gif|jpg|png&#39;</span><span class="p">;</span>
+<span class="nv">$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>
+<span class="nv">$config</span><span class="p">[</span><span class="s1">&#39;max_width&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;1024&#39;</span><span class="p">;</span>
+<span class="nv">$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>
+
+<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>
+
+<span class="c1">// Alternately you can set preferences by calling the ``initialize()`` method. Useful if you auto-load the class:</span>
+<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">upload</span><span class="o">-&gt;</span><span class="na">initialize</span><span class="p">(</span><span class="nv">$config</span><span class="p">);</span>
+</pre></div>
+</div>
+<p>The above preferences should be fairly self-explanatory. Below is a
+table describing all available preferences.</p>
+</div>
+<div class="section" id="preferences">
+<h3><a class="toc-backref" href="#id10">Preferences</a><a class="headerlink" href="#preferences" title="Permalink to this headline">¶</a></h3>
+<p>The following preferences are available. The default value indicates
+what will be used if you do not specify that preference.</p>
+<table border="1" class="docutils">
+<colgroup>
+<col width="20%" />
+<col width="12%" />
+<col width="16%" />
+<col width="51%" />
+</colgroup>
+<thead valign="bottom">
+<tr class="row-odd"><th class="head">Preference</th>
+<th class="head">Default Value</th>
+<th class="head">Options</th>
+<th class="head">Description</th>
+</tr>
+</thead>
+<tbody valign="top">
+<tr class="row-even"><td><strong>upload_path</strong></td>
+<td>None</td>
+<td>None</td>
+<td>The path to the directory where the upload should be placed. The
+directory must be writable and the path can be absolute or relative.</td>
+</tr>
+<tr class="row-odd"><td><strong>allowed_types</strong></td>
+<td>None</td>
+<td>None</td>
+<td>The mime types corresponding to the types of files you allow to be
+uploaded. Usually the file extension can be used as the mime type.
+Can be either an array or a pipe-separated string.</td>
+</tr>
+<tr class="row-even"><td><strong>file_name</strong></td>
+<td>None</td>
+<td>Desired file name</td>
+<td>If set CodeIgniter will rename the uploaded file to this name. The
+extension provided in the file name must also be an allowed file type.
+If no extension is provided in the original file_name will be used.</td>
+</tr>
+<tr class="row-odd"><td><strong>file_ext_tolower</strong></td>
+<td>FALSE</td>
+<td>TRUE/FALSE (boolean)</td>
+<td>If set to TRUE, the file extension will be forced to lower case</td>
+</tr>
+<tr class="row-even"><td><strong>overwrite</strong></td>
+<td>FALSE</td>
+<td>TRUE/FALSE (boolean)</td>
+<td>If set to true, if a file with the same name as the one you are
+uploading exists, it will be overwritten. If set to false, a number will
+be appended to the filename if another with the same name exists.</td>
+</tr>
+<tr class="row-odd"><td><strong>max_size</strong></td>
+<td>0</td>
+<td>None</td>
+<td>The maximum size (in kilobytes) that the file can be. Set to zero for no
+limit. Note: Most PHP installations have their own limit, as specified
+in the php.ini file. Usually 2 MB (or 2048 KB) by default.</td>
+</tr>
+<tr class="row-even"><td><strong>max_width</strong></td>
+<td>0</td>
+<td>None</td>
+<td>The maximum width (in pixels) that the image can be. Set to zero for no
+limit.</td>
+</tr>
+<tr class="row-odd"><td><strong>max_height</strong></td>
+<td>0</td>
+<td>None</td>
+<td>The maximum height (in pixels) that the image can be. Set to zero for no
+limit.</td>
+</tr>
+<tr class="row-even"><td><strong>min_width</strong></td>
+<td>0</td>
+<td>None</td>
+<td>The minimum width (in pixels) that the image can be. Set to zero for no
+limit.</td>
+</tr>
+<tr class="row-odd"><td><strong>min_height</strong></td>
+<td>0</td>
+<td>None</td>
+<td>The minimum height (in pixels) that the image can be. Set to zero for no
+limit.</td>
+</tr>
+<tr class="row-even"><td><strong>max_filename</strong></td>
+<td>0</td>
+<td>None</td>
+<td>The maximum length that a file name can be. Set to zero for no limit.</td>
+</tr>
+<tr class="row-odd"><td><strong>max_filename_increment</strong></td>
+<td>100</td>
+<td>None</td>
+<td>When overwrite is set to FALSE, use this to set the maximum filename
+increment for CodeIgniter to append to the filename.</td>
+</tr>
+<tr class="row-even"><td><strong>encrypt_name</strong></td>
+<td>FALSE</td>
+<td>TRUE/FALSE (boolean)</td>
+<td>If set to TRUE the file name will be converted to a random encrypted
+string. This can be useful if you would like the file saved with a name
+that can not be discerned by the person uploading it.</td>
+</tr>
+<tr class="row-odd"><td><strong>remove_spaces</strong></td>
+<td>TRUE</td>
+<td>TRUE/FALSE (boolean)</td>
+<td>If set to TRUE, any spaces in the file name will be converted to
+underscores. This is recommended.</td>
+</tr>
+<tr class="row-even"><td><strong>detect_mime</strong></td>
+<td>TRUE</td>
+<td>TRUE/FALSE (boolean)</td>
+<td>If set to TRUE, a server side detection of the file type will be
+performed to avoid code injection attacks. DO NOT disable this option
+unless you have no other option as that would cause a security risk.</td>
+</tr>
+<tr class="row-odd"><td><strong>mod_mime_fix</strong></td>
+<td>TRUE</td>
+<td>TRUE/FALSE (boolean)</td>
+<td>If set to TRUE, multiple filename extensions will be suffixed with an
+underscore in order to avoid triggering <a class="reference external" href="http://httpd.apache.org/docs/2.0/mod/mod_mime.html#multipleext">Apache mod_mime</a>.
+DO NOT turn off this option if your upload directory is public, as this
+is a security risk.</td>
+</tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="setting-preferences-in-a-config-file">
+<h3><a class="toc-backref" href="#id11">Setting preferences in a config file</a><a class="headerlink" href="#setting-preferences-in-a-config-file" title="Permalink to this headline">¶</a></h3>
+<p>If you prefer not to set preferences using the above method, you can
+instead put them into a config file. Simply create a new file called the
+upload.php, add the $config array in that file. Then save the file in:
+<strong>config/upload.php</strong> and it will be used automatically. You will NOT
+need to use the <code class="docutils literal"><span class="pre">$this-&gt;upload-&gt;initialize()</span></code> method if you save your
+preferences in a config file.</p>
+</div>
+</div>
+<div class="section" id="class-reference">
+<h2><a class="toc-backref" href="#id12">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
+<dl class="class">
+<dt id="CI_Upload">
+<em class="property">class </em><code class="descname">CI_Upload</code><a class="headerlink" href="#CI_Upload" title="Permalink to this definition">¶</a></dt>
+<dd><dl class="method">
+<dt id="CI_Upload::initialize">
+<code class="descname">initialize</code><span class="sig-paren">(</span><span class="optional">[</span><em>array $config = array()</em><span class="optional">[</span>, <em>$reset = TRUE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Upload::initialize" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$config</strong> (<em>array</em>) – Preferences</li>
+<li><strong>$reset</strong> (<em>bool</em>) – Whether to reset preferences (that are not provided in $config) to their defaults</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Upload instance (method chaining)</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Upload</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_Upload::do_upload">
+<code class="descname">do_upload</code><span class="sig-paren">(</span><span class="optional">[</span><em>$field = 'userfile'</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Upload::do_upload" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$field</strong> (<em>string</em>) – Name of the form field</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Performs the upload based on the preferences you’ve set.</p>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">By default the upload routine expects the file to come from
+a form field called userfile, and the form must be of type
+“multipart”.</p>
+</div>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="nx">form</span> <span class="nx">method</span><span class="o">=</span><span class="s2">&quot;post&quot;</span> <span class="nx">action</span><span class="o">=</span><span class="s2">&quot;some_action&quot;</span> <span class="nx">enctype</span><span class="o">=</span><span class="s2">&quot;multipart/form-data&quot;</span> <span class="o">/&gt;</span>
+</pre></div>
+</div>
+<p>If you would like to set your own field name simply pass its value to
+the <code class="docutils literal"><span class="pre">do_upload()</span></code> method:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$field_name</span> <span class="o">=</span> <span class="s2">&quot;some_field_name&quot;</span><span class="p">;</span>
+<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">upload</span><span class="o">-&gt;</span><span class="na">do_upload</span><span class="p">(</span><span class="nv">$field_name</span><span class="p">);</span>
+</pre></div>
+</div>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_Upload::display_errors">
+<code class="descname">display_errors</code><span class="sig-paren">(</span><span class="optional">[</span><em>$open = '&lt;p&gt;'</em><span class="optional">[</span>, <em>$close = '&lt;/p&gt;'</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Upload::display_errors" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$open</strong> (<em>string</em>) – Opening markup</li>
+<li><strong>$close</strong> (<em>string</em>) – Closing markup</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Formatted error message(s)</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Retrieves any error messages if the <code class="docutils literal"><span class="pre">do_upload()</span></code> method returned
+false. The method does not echo automatically, it returns the data so
+you can assign it however you need.</p>
+<p><strong>Formatting Errors</strong></p>
+<blockquote>
+<div><p>By default the above method wraps any errors within &lt;p&gt; tags. You can
+set your own delimiters like this:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">upload</span><span class="o">-&gt;</span><span class="na">display_errors</span><span class="p">(</span><span class="s1">&#39;&lt;p&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&lt;/p&gt;&#39;</span><span class="p">);</span>
+</pre></div>
+</div>
+</div></blockquote>
+</dd></dl>
+
+<dl class="method">
+<dt id="CI_Upload::data">
+<code class="descname">data</code><span class="sig-paren">(</span><span class="optional">[</span><em>$index = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Upload::data" title="Permalink to this definition">¶</a></dt>
+<dd><table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>$data</strong> (<em>string</em>) – Element to return instead of the full array</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Information about the uploaded file</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>This is a helper method that returns an array containing all of the
+data related to the file you uploaded. Here is the array prototype:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">Array</span>
+<span class="p">(</span>
+ <span class="p">[</span><span class="nx">file_name</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="nx">mypic</span><span class="o">.</span><span class="nx">jpg</span>
+ <span class="p">[</span><span class="nx">file_type</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="nx">image</span><span class="o">/</span><span class="nx">jpeg</span>
+ <span class="p">[</span><span class="nx">file_path</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="o">/</span><span class="nx">path</span><span class="o">/</span><span class="nx">to</span><span class="o">/</span><span class="nx">your</span><span class="o">/</span><span class="nx">upload</span><span class="o">/</span>
+ <span class="p">[</span><span class="nx">full_path</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="o">/</span><span class="nx">path</span><span class="o">/</span><span class="nx">to</span><span class="o">/</span><span class="nx">your</span><span class="o">/</span><span class="nx">upload</span><span class="o">/</span><span class="nx">jpg</span><span class="o">.</span><span class="nx">jpg</span>
+ <span class="p">[</span><span class="nx">raw_name</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="nx">mypic</span>
+ <span class="p">[</span><span class="nx">orig_name</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="nx">mypic</span><span class="o">.</span><span class="nx">jpg</span>
+ <span class="p">[</span><span class="nx">client_name</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="nx">mypic</span><span class="o">.</span><span class="nx">jpg</span>
+ <span class="p">[</span><span class="nx">file_ext</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="o">.</span><span class="nx">jpg</span>
+ <span class="p">[</span><span class="nx">file_size</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="mf">22.2</span>
+ <span class="p">[</span><span class="nx">is_image</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="mi">1</span>
+ <span class="p">[</span><span class="nx">image_width</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="mi">800</span>
+ <span class="p">[</span><span class="nx">image_height</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="mi">600</span>
+ <span class="p">[</span><span class="nx">image_type</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="nx">jpeg</span>
+ <span class="p">[</span><span class="nx">image_size_str</span><span class="p">]</span> <span class="o">=&gt;</span> <span class="nx">width</span><span class="o">=</span><span class="s2">&quot;800&quot;</span> <span class="nx">height</span><span class="o">=</span><span class="s2">&quot;200&quot;</span>
+<span class="p">)</span>
+</pre></div>
+</div>
+<p>To return one element from the array:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></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><span class="s1">&#39;file_name&#39;</span><span class="p">);</span> <span class="c1">// Returns: mypic.jpg</span>
+</pre></div>
+</div>
+<p>Here’s a table explaining the above-displayed array items:</p>
+<table border="1" class="docutils">
+<colgroup>
+<col width="14%" />
+<col width="86%" />
+</colgroup>
+<thead valign="bottom">
+<tr class="row-odd"><th class="head">Item</th>
+<th class="head">Description</th>
+</tr>
+</thead>
+<tbody valign="top">
+<tr class="row-even"><td>file_name</td>
+<td>Name of the file that was uploaded, including the filename extension</td>
+</tr>
+<tr class="row-odd"><td>file_type</td>
+<td>File MIME type identifier</td>
+</tr>
+<tr class="row-even"><td>file_path</td>
+<td>Absolute server path to the file</td>
+</tr>
+<tr class="row-odd"><td>full_path</td>
+<td>Absolute server path, including the file name</td>
+</tr>
+<tr class="row-even"><td>raw_name</td>
+<td>File name, without the extension</td>
+</tr>
+<tr class="row-odd"><td>orig_name</td>
+<td>Original file name. This is only useful if you use the encrypted name option.</td>
+</tr>
+<tr class="row-even"><td>client_name</td>
+<td>File name as supplied by the client user agent, prior to any file name preparation or incrementing</td>
+</tr>
+<tr class="row-odd"><td>file_ext</td>
+<td>Filename extension, period included</td>
+</tr>
+<tr class="row-even"><td>file_size</td>
+<td>File size in kilobytes</td>
+</tr>
+<tr class="row-odd"><td>is_image</td>
+<td>Whether the file is an image or not. 1 = image. 0 = not.</td>
+</tr>
+<tr class="row-even"><td>image_width</td>
+<td>Image width</td>
+</tr>
+<tr class="row-odd"><td>image_height</td>
+<td>Image height</td>
+</tr>
+<tr class="row-even"><td>image_type</td>
+<td>Image type (usually the file name extension without the period)</td>
+</tr>
+<tr class="row-odd"><td>image_size_str</td>
+<td>A string containing the width and height (useful to put into an image tag)</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+</dd></dl>
+
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