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-<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
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-<li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
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-</ul>
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-<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>
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-<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>
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-</ul>
-</li>
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-
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-
- </div>
- &nbsp;
- </nav>
-
- <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
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- <li><a href="../index.html">Docs</a> &raquo;</li>
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- <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
- </div>
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- <div role="main" class="document">
-
- <div class="section" id="loader-class">
-<h1>Loader Class<a class="headerlink" href="#loader-class" title="Permalink to this headline">¶</a></h1>
-<p>Loader, as the name suggests, is used to load elements. These elements
-can be libraries (classes) <a class="reference internal" href="../general/views.html"><span class="doc">View files</span></a>,
-<a class="reference internal" href="../general/drivers.html"><span class="doc">Drivers</span></a>,
-<a class="reference internal" href="../general/helpers.html"><span class="doc">Helpers</span></a>,
-<a class="reference internal" href="../general/models.html"><span class="doc">Models</span></a>, or your own files.</p>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">This class is initialized automatically by the system so there
-is no need to do it manually.</p>
-</div>
-<div class="contents local topic" id="contents">
-<ul class="simple">
-<li><a class="reference internal" href="#application-packages" id="id2">Application “Packages”</a><ul>
-<li><a class="reference internal" href="#package-view-files" id="id3">Package view files</a></li>
-</ul>
-</li>
-<li><a class="reference internal" href="#class-reference" id="id4">Class Reference</a></li>
-</ul>
-</div>
-<div class="custom-index container"></div><div class="section" id="application-packages">
-<h2><a class="toc-backref" href="#id2">Application “Packages”</a><a class="headerlink" href="#application-packages" title="Permalink to this headline">¶</a></h2>
-<p>An application package allows for the easy distribution of complete sets
-of resources in a single directory, complete with its own libraries,
-models, helpers, config, and language files. It is recommended that
-these packages be placed in the application/third_party directory. Below
-is a sample map of an package directory.</p>
-<p>The following is an example of a directory for an application package
-named “Foo Bar”.</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">/</span><span class="nx">application</span><span class="o">/</span><span class="nx">third_party</span><span class="o">/</span><span class="nx">foo_bar</span>
-
-<span class="nx">config</span><span class="o">/</span>
-<span class="nx">helpers</span><span class="o">/</span>
-<span class="nx">language</span><span class="o">/</span>
-<span class="nx">libraries</span><span class="o">/</span>
-<span class="nx">models</span><span class="o">/</span>
-</pre></div>
-</div>
-<p>Whatever the purpose of the “Foo Bar” application package, it has its
-own config files, helpers, language files, libraries, and models. To use
-these resources in your controllers, you first need to tell the Loader
-that you are going to be loading resources from a package, by adding the
-package path via the <code class="docutils literal"><span class="pre">add_package_path()</span></code> method.</p>
-<div class="section" id="package-view-files">
-<h3><a class="toc-backref" href="#id3">Package view files</a><a class="headerlink" href="#package-view-files" title="Permalink to this headline">¶</a></h3>
-<p>By Default, package view files paths are set when <code class="docutils literal"><span class="pre">add_package_path()</span></code>
-is called. View paths are looped through, and once a match is
-encountered that view is loaded.</p>
-<p>In this instance, it is possible for view naming collisions within
-packages to occur, and possibly the incorrect package being loaded. To
-ensure against this, set an optional second parameter of FALSE when
-calling <code class="docutils literal"><span class="pre">add_package_path()</span></code>.</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">add_package_path</span><span class="p">(</span><span class="nx">APPPATH</span><span class="o">.</span><span class="s1">&#39;my_app&#39;</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span>
-<span class="nv">$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;my_app_index&#39;</span><span class="p">);</span> <span class="c1">// Loads</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;welcome_message&#39;</span><span class="p">);</span> <span class="c1">// Will not load the default welcome_message b/c the second param to add_package_path is FALSE</span>
-
-<span class="c1">// Reset things</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">remove_package_path</span><span class="p">(</span><span class="nx">APPPATH</span><span class="o">.</span><span class="s1">&#39;my_app&#39;</span><span class="p">);</span>
-
-<span class="c1">// Again without the second parameter:</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">add_package_path</span><span class="p">(</span><span class="nx">APPPATH</span><span class="o">.</span><span class="s1">&#39;my_app&#39;</span><span class="p">);</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;my_app_index&#39;</span><span class="p">);</span> <span class="c1">// Loads</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;welcome_message&#39;</span><span class="p">);</span> <span class="c1">// Loads</span>
-</pre></div>
-</div>
-</div>
-</div>
-<div class="section" id="class-reference">
-<h2><a class="toc-backref" href="#id4">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
-<dl class="class">
-<dt id="CI_Loader">
-<em class="property">class </em><code class="descname">CI_Loader</code><a class="headerlink" href="#CI_Loader" title="Permalink to this definition">¶</a></dt>
-<dd><dl class="method">
-<dt id="CI_Loader::library">
-<code class="descname">library</code><span class="sig-paren">(</span><em>$library</em><span class="optional">[</span>, <em>$params = NULL</em><span class="optional">[</span>, <em>$object_name = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::library" 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>$library</strong> (<em>mixed</em>) – Library name as a string or an array with multiple libraries</li>
-<li><strong>$params</strong> (<em>array</em>) – Optional array of parameters to pass to the loaded library’s constructor</li>
-<li><strong>$object_name</strong> (<em>string</em>) – Optional object name to assign the library to</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This method is used to load core classes.</p>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">We use the terms “class” and “library” interchangeably.</p>
-</div>
-<p>For example, if you would like to send email with CodeIgniter, the first
-step is to load the email class within your controller:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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;email&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>Once loaded, the library will be ready for use, using <code class="docutils literal"><span class="pre">$this-&gt;email</span></code>.</p>
-<p>Library files can be stored in subdirectories within the main
-“libraries” directory, or within your personal <em>application/libraries</em>
-directory. To load a file located in a subdirectory, simply include the
-path, relative to the “libraries” directory. For example, if you have
-file located at:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">libraries</span><span class="o">/</span><span class="nx">flavors</span><span class="o">/</span><span class="nx">Chocolate</span><span class="o">.</span><span class="nx">php</span>
-</pre></div>
-</div>
-<p>You will load it using:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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;flavors/chocolate&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>You may nest the file in as many subdirectories as you want.</p>
-<p>Additionally, multiple libraries can be loaded at the same time by
-passing an array of libraries to the load method.</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">&#39;email&#39;</span><span class="p">,</span> <span class="s1">&#39;table&#39;</span><span class="p">));</span>
-</pre></div>
-</div>
-<p><strong>Setting options</strong></p>
-<p>The second (optional) parameter allows you to optionally pass
-configuration setting. You will typically pass these as an array:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$config</span> <span class="o">=</span> <span class="k">array</span> <span class="p">(</span>
- <span class="s1">&#39;mailtype&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;html&#39;</span><span class="p">,</span>
- <span class="s1">&#39;charset&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;utf-8&#39;</span><span class="p">,</span>
- <span class="s1">&#39;priority&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;1&#39;</span>
-<span class="p">);</span>
-
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;email&#39;</span><span class="p">,</span> <span class="nv">$config</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>Config options can usually also be set via a config file. Each library
-is explained in detail in its own page, so please read the information
-regarding each one you would like to use.</p>
-<p>Please take note, when multiple libraries are supplied in an array for
-the first parameter, each will receive the same parameter information.</p>
-<p><strong>Assigning a Library to a different object name</strong></p>
-<p>If the third (optional) parameter is blank, the library will usually be
-assigned to an object with the same name as the library. For example, if
-the library is named Calendar, it will be assigned to a variable named
-<code class="docutils literal"><span class="pre">$this-&gt;calendar</span></code>.</p>
-<p>If you prefer to set your own class names you can pass its value to the
-third parameter:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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;calendar&#39;</span><span class="p">,</span> <span class="k">NULL</span><span class="p">,</span> <span class="s1">&#39;my_calendar&#39;</span><span class="p">);</span>
-
-<span class="c1">// Calendar class is now accessed using:</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">my_calendar</span>
-</pre></div>
-</div>
-<p>Please take note, when multiple libraries are supplied in an array for
-the first parameter, this parameter is discarded.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::driver">
-<code class="descname">driver</code><span class="sig-paren">(</span><em>$library</em><span class="optional">[</span>, <em>$params = NULL</em><span class="optional">[</span>, <em>$object_name</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::driver" 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>$library</strong> (<em>mixed</em>) – Library name as a string or an array with multiple libraries</li>
-<li><strong>$params</strong> (<em>array</em>) – Optional array of parameters to pass to the loaded library’s constructor</li>
-<li><strong>$object_name</strong> (<em>string</em>) – Optional object name to assign the library to</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This method is used to load driver libraries, acts very much like the
-<code class="docutils literal"><span class="pre">library()</span></code> method.</p>
-<p>As an example, if you would like to use sessions with CodeIgniter, the first
-step is to load the session driver within your controller:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">driver</span><span class="p">(</span><span class="s1">&#39;session&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>Once loaded, the library will be ready for use, using <code class="docutils literal"><span class="pre">$this-&gt;session</span></code>.</p>
-<p>Driver files must be stored in a subdirectory within the main
-“libraries” directory, or within your personal <em>application/libraries</em>
-directory. The subdirectory must match the parent class name. Read the
-<a class="reference internal" href="../general/drivers.html"><span class="doc">Drivers</span></a> description for details.</p>
-<p>Additionally, multiple driver libraries can be loaded at the same time by
-passing an array of drivers to the load method.</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">driver</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">&#39;session&#39;</span><span class="p">,</span> <span class="s1">&#39;cache&#39;</span><span class="p">));</span>
-</pre></div>
-</div>
-<p><strong>Setting options</strong></p>
-<p>The second (optional) parameter allows you to optionally pass
-configuration settings. You will typically pass these as an array:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$config</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
- <span class="s1">&#39;sess_driver&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;cookie&#39;</span><span class="p">,</span>
- <span class="s1">&#39;sess_encrypt_cookie&#39;</span> <span class="o">=&gt;</span> <span class="k">true</span><span class="p">,</span>
- <span class="s1">&#39;encryption_key&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;mysecretkey&#39;</span>
-<span class="p">);</span>
-
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">driver</span><span class="p">(</span><span class="s1">&#39;session&#39;</span><span class="p">,</span> <span class="nv">$config</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>Config options can usually also be set via a config file. Each library
-is explained in detail in its own page, so please read the information
-regarding each one you would like to use.</p>
-<p><strong>Assigning a Driver to a different object name</strong></p>
-<p>If the third (optional) parameter is blank, the library will be assigned
-to an object with the same name as the parent class. For example, if
-the library is named Session, it will be assigned to a variable named
-<code class="docutils literal"><span class="pre">$this-&gt;session</span></code>.</p>
-<p>If you prefer to set your own class names you can pass its value to the
-third parameter:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;session&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="s1">&#39;my_session&#39;</span><span class="p">);</span>
-
-<span class="c1">// Session class is now accessed using:</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">my_session</span>
-</pre></div>
-</div>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::view">
-<code class="descname">view</code><span class="sig-paren">(</span><em>$view</em><span class="optional">[</span>, <em>$vars = array()</em><span class="optional">[</span>, <em>return = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::view" 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>$view</strong> (<em>string</em>) – View name</li>
-<li><strong>$vars</strong> (<em>array</em>) – An associative array of variables</li>
-<li><strong>$return</strong> (<em>bool</em>) – Whether to return the loaded view</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">View content string if $return is set to TRUE, otherwise CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This method is used to load your View files. If you haven’t read the
-<a class="reference internal" href="../general/views.html"><span class="doc">Views</span></a> section of the user guide it is
-recommended that you do since it shows you how this method is
-typically used.</p>
-<p>The first parameter is required. It is the name of the view file you
-would like to load.</p>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">The .php file extension does not need to be specified unless
-you use something other than .php.</p>
-</div>
-<p>The second <strong>optional</strong> parameter can take an associative array or an
-object as input, which it runs through the PHP
-<a class="reference external" href="http://php.net/extract">extract()</a> function to convert to variables
-that can be used in your view files. Again, read the
-<a class="reference internal" href="../general/views.html"><span class="doc">Views</span></a> page to learn how this might be useful.</p>
-<p>The third <strong>optional</strong> parameter lets you change the behavior of the
-method so that it returns data as a string rather than sending it to
-your browser. This can be useful if you want to process the data in some
-way. If you set the parameter to TRUE (boolean) it will return data. The
-default behavior is FALSE, which sends it to your browser. Remember to
-assign it to a variable if you want the data returned:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;myfile&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
-</pre></div>
-</div>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::vars">
-<code class="descname">vars</code><span class="sig-paren">(</span><em>$vars</em><span class="optional">[</span>, <em>$val = ''</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::vars" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$vars</strong> (<em>mixed</em>) – An array of variables or a single variable name</li>
-<li><strong>$val</strong> (<em>mixed</em>) – Optional variable value</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This method takes an associative array as input and generates
-variables using the PHP <a class="reference external" href="http://php.net/extract">extract()</a>
-function. This method produces the same result as using the second
-parameter of the <code class="docutils literal"><span class="pre">$this-&gt;load-&gt;view()</span></code> method above. The reason you
-might want to use this method independently is if you would like to
-set some global variables in the constructor of your controller and have
-them become available in any view file loaded from any method. You can
-have multiple calls to this method. The data get cached and merged
-into one array for conversion to variables.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::get_var">
-<code class="descname">get_var</code><span class="sig-paren">(</span><em>$key</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::get_var" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$key</strong> (<em>string</em>) – Variable name key</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Value if key is found, NULL if not</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 method checks the associative array of variables available to
-your views. This is useful if for any reason a var is set in a library
-or another controller method using <code class="docutils literal"><span class="pre">$this-&gt;load-&gt;vars()</span></code>.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::get_vars">
-<code class="descname">get_vars</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::get_vars" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">An array of all assigned view variables</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">array</td>
-</tr>
-</tbody>
-</table>
-<p>This method retrieves all variables available to your views.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::clear_vars">
-<code class="descname">clear_vars</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::clear_vars" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">CI_Loader instance (method chaining)</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">CI_Loader</td>
-</tr>
-</tbody>
-</table>
-<p>Clears cached view variables.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::model">
-<code class="descname">model</code><span class="sig-paren">(</span><em>$model</em><span class="optional">[</span>, <em>$name = ''</em><span class="optional">[</span>, <em>$db_conn = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::model" 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>$model</strong> (<em>mixed</em>) – Model name or an array containing multiple models</li>
-<li><strong>$name</strong> (<em>string</em>) – Optional object name to assign the model to</li>
-<li><strong>$db_conn</strong> (<em>string</em>) – Optional database configuration group to load</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">model</span><span class="p">(</span><span class="s1">&#39;model_name&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>If your model is located in a subdirectory, include the relative path
-from your models directory. For example, if you have a model located at
-<em>application/models/blog/Queries.php</em> you’ll load it using:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">model</span><span class="p">(</span><span class="s1">&#39;blog/queries&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>If you would like your model assigned to a different object name you can
-specify it via the second parameter of the loading method:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">model</span><span class="p">(</span><span class="s1">&#39;model_name&#39;</span><span class="p">,</span> <span class="s1">&#39;fubar&#39;</span><span class="p">);</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">fubar</span><span class="o">-&gt;</span><span class="na">method</span><span class="p">();</span>
-</pre></div>
-</div>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::database">
-<code class="descname">database</code><span class="sig-paren">(</span><span class="optional">[</span><em>$params = ''</em><span class="optional">[</span>, <em>$return = FALSE</em><span class="optional">[</span>, <em>$query_builder = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::database" 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>$params</strong> (<em>mixed</em>) – Database group name or configuration options</li>
-<li><strong>$return</strong> (<em>bool</em>) – Whether to return the loaded database object</li>
-<li><strong>$query_builder</strong> (<em>bool</em>) – Whether to load the Query Builder</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Loaded CI_DB instance or FALSE on failure if $return is set to TRUE, otherwise CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This method lets you load the database class. The two parameters are
-<strong>optional</strong>. Please see the <a class="reference internal" href="../database/index.html"><span class="doc">database</span></a>
-section for more info.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::dbforge">
-<code class="descname">dbforge</code><span class="sig-paren">(</span><span class="optional">[</span><em>$db = NULL</em><span class="optional">[</span>, <em>$return = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::dbforge" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$db</strong> (<em>object</em>) – Database object</li>
-<li><strong>$return</strong> (<em>bool</em>) – Whether to return the Database Forge instance</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Loaded CI_DB_forge instance if $return is set to TRUE, otherwise CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>Loads the <a class="reference internal" href="../database/forge.html"><span class="doc">Database Forge</span></a> class, please refer
-to that manual for more info.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::dbutil">
-<code class="descname">dbutil</code><span class="sig-paren">(</span><span class="optional">[</span><em>$db = NULL</em><span class="optional">[</span>, <em>$return = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::dbutil" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$db</strong> (<em>object</em>) – Database object</li>
-<li><strong>$return</strong> (<em>bool</em>) – Whether to return the Database Utilities instance</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Loaded CI_DB_utility instance if $return is set to TRUE, otherwise CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>Loads the <a class="reference internal" href="../database/utilities.html"><span class="doc">Database Utilities</span></a> class, please
-refer to that manual for more info.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::helper">
-<code class="descname">helper</code><span class="sig-paren">(</span><em>$helpers</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::helper" 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>$helpers</strong> (<em>mixed</em>) – Helper name as a string or an array containing multiple helpers</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This method loads helper files, where file_name is the name of the
-file, without the _helper.php extension.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::file">
-<code class="descname">file</code><span class="sig-paren">(</span><em>$path</em><span class="optional">[</span>, <em>$return = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::file" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$path</strong> (<em>string</em>) – File path</li>
-<li><strong>$return</strong> (<em>bool</em>) – Whether to return the loaded file</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">File contents if $return is set to TRUE, otherwise CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This is a generic file loading method. Supply the filepath and name in
-the first parameter and it will open and read the file. By default the
-data is sent to your browser, just like a View file, but if you set the
-second parameter to boolean TRUE it will instead return the data as a
-string.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::language">
-<code class="descname">language</code><span class="sig-paren">(</span><em>$files</em><span class="optional">[</span>, <em>$lang = ''</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::language" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$files</strong> (<em>mixed</em>) – Language file name or an array of multiple language files</li>
-<li><strong>$lang</strong> (<em>string</em>) – Language name</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>This method is an alias of the <a class="reference internal" href="language.html"><span class="doc">language loading
-method</span></a>: <code class="docutils literal"><span class="pre">$this-&gt;lang-&gt;load()</span></code>.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::config">
-<code class="descname">config</code><span class="sig-paren">(</span><em>$file</em><span class="optional">[</span>, <em>$use_sections = FALSE</em><span class="optional">[</span>, <em>$fail_gracefully = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::config" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$file</strong> (<em>string</em>) – Configuration file name</li>
-<li><strong>$use_sections</strong> (<em>bool</em>) – Whether configuration values should be loaded into their own section</li>
-<li><strong>$fail_gracefully</strong> (<em>bool</em>) – Whether to just return FALSE in case of failure</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>This method is an alias of the <a class="reference internal" href="config.html"><span class="doc">config file loading
-method</span></a>: <code class="docutils literal"><span class="pre">$this-&gt;config-&gt;load()</span></code></p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::is_loaded">
-<code class="descname">is_loaded</code><span class="sig-paren">(</span><em>$class</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::is_loaded" 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>$class</strong> (<em>string</em>) – Class name</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Singleton property name if found, FALSE if not</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>Allows you to check if a class has already been loaded or not.</p>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">The word “class” here refers to libraries and drivers.</p>
-</div>
-<p>If the requested class has been loaded, the method returns its assigned
-name in the CI Super-object and FALSE if it’s not:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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;form_validation&#39;</span><span class="p">);</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">is_loaded</span><span class="p">(</span><span class="s1">&#39;Form_validation&#39;</span><span class="p">);</span> <span class="c1">// returns &#39;form_validation&#39;</span>
-
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">is_loaded</span><span class="p">(</span><span class="s1">&#39;Nonexistent_library&#39;</span><span class="p">);</span> <span class="c1">// returns FALSE</span>
-</pre></div>
-</div>
-<div class="admonition important">
-<p class="first admonition-title">Important</p>
-<p class="last">If you have more than one instance of a class (assigned to
-different properties), then the first one will be returned.</p>
-</div>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;form_validation&#39;</span><span class="p">,</span> <span class="nv">$config</span><span class="p">,</span> <span class="s1">&#39;fv&#39;</span><span class="p">);</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;form_validation&#39;</span><span class="p">);</span>
-
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">is_loaded</span><span class="p">(</span><span class="s1">&#39;Form_validation&#39;</span><span class="p">);</span> <span class="c1">// returns &#39;fv&#39;</span>
-</pre></div>
-</div>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::add_package_path">
-<code class="descname">add_package_path</code><span class="sig-paren">(</span><em>$path</em><span class="optional">[</span>, <em>$view_cascade = TRUE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::add_package_path" 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>$path</strong> (<em>string</em>) – Path to add</li>
-<li><strong>$view_cascade</strong> (<em>bool</em>) – Whether to use cascading views</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader 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_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>Adding a package path instructs the Loader class to prepend a given path
-for subsequent requests for resources. As an example, the “Foo Bar”
-application package above has a library named Foo_bar.php. In our
-controller, we’d do the following:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">add_package_path</span><span class="p">(</span><span class="nx">APPPATH</span><span class="o">.</span><span class="s1">&#39;third_party/foo_bar/&#39;</span><span class="p">)</span>
- <span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;foo_bar&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::remove_package_path">
-<code class="descname">remove_package_path</code><span class="sig-paren">(</span><span class="optional">[</span><em>$path = ''</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::remove_package_path" 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>$path</strong> (<em>string</em>) – Path to remove</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">CI_Loader instance (method chaining)</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">CI_Loader</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>When your controller is finished using resources from an application
-package, and particularly if you have other application packages you
-want to work with, you may wish to remove the package path so the Loader
-no longer looks in that directory for resources. To remove the last path
-added, simply call the method with no parameters.</p>
-<p>Or to remove a specific package path, specify the same path previously
-given to <code class="docutils literal"><span class="pre">add_package_path()</span></code> for a package.:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">remove_package_path</span><span class="p">(</span><span class="nx">APPPATH</span><span class="o">.</span><span class="s1">&#39;third_party/foo_bar/&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Loader::get_package_paths">
-<code class="descname">get_package_paths</code><span class="sig-paren">(</span><span class="optional">[</span><em>$include_base = TRUE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Loader::get_package_paths" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$include_base</strong> (<em>bool</em>) – Whether to include BASEPATH</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array of package paths</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>Returns all currently available package paths.</p>
-</dd></dl>
-
-</dd></dl>
-
-</div>
-</div>
-
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