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diff --git a/user_guide/libraries/input.html b/user_guide/libraries/input.html deleted file mode 100644 index 65851f16c..000000000 --- a/user_guide/libraries/input.html +++ /dev/null @@ -1,1191 +0,0 @@ - - -<!DOCTYPE html> -<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> -<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> -<head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1.0"> - - <title>Input Class — CodeIgniter 3.1.10 documentation</title> - - - - - <link rel="shortcut icon" href="../_static/ci-icon.ico"/> - - - - <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'> - - - - - - - - - - <link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" /> - - - - <link rel="index" title="Index" - href="../genindex.html"/> - <link rel="search" title="Search" 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-<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li> -</ul> -</li> -</ul> - - - - </div> - - </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> »</li> - - <li><a href="index.html">Libraries</a> »</li> - - <li>Input 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="input-class"> -<h1>Input Class<a class="headerlink" href="#input-class" title="Permalink to this headline">¶</a></h1> -<p>The Input Class serves two purposes:</p> -<ol class="arabic simple"> -<li>It pre-processes global input data for security.</li> -<li>It provides some helper methods for fetching input data and pre-processing it.</li> -</ol> -<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="#input-filtering" id="id1">Input Filtering</a><ul> -<li><a class="reference internal" href="#security-filtering" id="id2">Security Filtering</a></li> -<li><a class="reference internal" href="#xss-filtering" id="id3">XSS Filtering</a></li> -</ul> -</li> -<li><a class="reference internal" href="#accessing-form-data" id="id4">Accessing form data</a><ul> -<li><a class="reference internal" href="#using-post-get-cookie-or-server-data" id="id5">Using POST, GET, COOKIE, or SERVER Data</a></li> -<li><a class="reference internal" href="#using-the-php-input-stream" id="id6">Using the php://input stream</a></li> -</ul> -</li> -<li><a class="reference internal" href="#class-reference" id="id7">Class Reference</a></li> -</ul> -</div> -<div class="custom-index container"></div><div class="section" id="input-filtering"> -<h2><a class="toc-backref" href="#id1">Input Filtering</a><a class="headerlink" href="#input-filtering" title="Permalink to this headline">¶</a></h2> -<div class="section" id="security-filtering"> -<h3><a class="toc-backref" href="#id2">Security Filtering</a><a class="headerlink" href="#security-filtering" title="Permalink to this headline">¶</a></h3> -<p>The security filtering method is called automatically when a new -<a class="reference internal" href="../general/controllers.html"><span class="doc">controller</span></a> is invoked. It does the -following:</p> -<ul class="simple"> -<li>If <code class="docutils literal"><span class="pre">$config['allow_get_array']</span></code> is FALSE (default is TRUE), destroys -the global GET array.</li> -<li>Destroys all global variables in the event register_globals is -turned on.</li> -<li>Filters the GET/POST/COOKIE array keys, permitting only alpha-numeric -(and a few other) characters.</li> -<li>Provides XSS (Cross-site Scripting Hacks) filtering. This can be -enabled globally, or upon request.</li> -<li>Standardizes newline characters to <code class="docutils literal"><span class="pre">PHP_EOL</span></code> (\n in UNIX-based OSes, -\r\n under Windows). This is configurable.</li> -</ul> -</div> -<div class="section" id="xss-filtering"> -<h3><a class="toc-backref" href="#id3">XSS Filtering</a><a class="headerlink" href="#xss-filtering" title="Permalink to this headline">¶</a></h3> -<p>The Input class has the ability to filter input automatically to prevent -cross-site scripting attacks. If you want the filter to run -automatically every time it encounters POST or COOKIE data you can -enable it by opening your <em>application/config/config.php</em> file and setting -this:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$config</span><span class="p">[</span><span class="s1">'global_xss_filtering'</span><span class="p">]</span> <span class="o">=</span> <span class="k">TRUE</span><span class="p">;</span> -</pre></div> -</div> -<p>Please refer to the <a class="reference internal" href="security.html"><span class="doc">Security class</span></a> documentation for -information on using XSS Filtering in your application.</p> -<div class="admonition important"> -<p class="first admonition-title">Important</p> -<p class="last">The ‘global_xss_filtering’ setting is DEPRECATED and kept -solely for backwards-compatibility purposes. XSS escaping should -be performed on <em>output</em>, not <em>input</em>!</p> -</div> -</div> -</div> -<div class="section" id="accessing-form-data"> -<h2><a class="toc-backref" href="#id4">Accessing form data</a><a class="headerlink" href="#accessing-form-data" title="Permalink to this headline">¶</a></h2> -<div class="section" id="using-post-get-cookie-or-server-data"> -<h3><a class="toc-backref" href="#id5">Using POST, GET, COOKIE, or SERVER Data</a><a class="headerlink" href="#using-post-get-cookie-or-server-data" title="Permalink to this headline">¶</a></h3> -<p>CodeIgniter comes with helper methods that let you fetch POST, GET, -COOKIE or SERVER items. The main advantage of using the provided -methods rather than fetching an item directly (<code class="docutils literal"><span class="pre">$_POST['something']</span></code>) -is that the methods will check to see if the item is set and return -NULL if not. This lets you conveniently use data without -having to test whether an item exists first. In other words, normally -you might do something like this:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$something</span> <span class="o">=</span> <span class="nb">isset</span><span class="p">(</span><span class="nv">$_POST</span><span class="p">[</span><span class="s1">'something'</span><span class="p">])</span> <span class="o">?</span> <span class="nv">$_POST</span><span class="p">[</span><span class="s1">'something'</span><span class="p">]</span> <span class="o">:</span> <span class="k">NULL</span><span class="p">;</span> -</pre></div> -</div> -<p>With CodeIgniter’s built in methods you can simply do this:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$something</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="s1">'something'</span><span class="p">);</span> -</pre></div> -</div> -<p>The main methods are:</p> -<ul class="simple"> -<li><code class="docutils literal"><span class="pre">$this->input->post()</span></code></li> -<li><code class="docutils literal"><span class="pre">$this->input->get()</span></code></li> -<li><code class="docutils literal"><span class="pre">$this->input->cookie()</span></code></li> -<li><code class="docutils literal"><span class="pre">$this->input->server()</span></code></li> -</ul> -</div> -<div class="section" id="using-the-php-input-stream"> -<h3><a class="toc-backref" href="#id6">Using the php://input stream</a><a class="headerlink" href="#using-the-php-input-stream" title="Permalink to this headline">¶</a></h3> -<p>If you want to utilize the PUT, DELETE, PATCH or other exotic request -methods, they can only be accessed via a special input stream, that -can only be read once. This isn’t as easy as just reading from e.g. -the <code class="docutils literal"><span class="pre">$_POST</span></code> array, because it will always exist and you can try -and access multiple variables without caring that you might only have -one shot at all of the POST data.</p> -<p>CodeIgniter will take care of that for you, and you can read the data -from the <strong>php://input</strong> stream at any time, just by using the -<code class="docutils literal"><span class="pre">$raw_input_stream</span></code> property:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">raw_input_stream</span><span class="p">;</span> -</pre></div> -</div> -<p>Additionally if the input stream is form-encoded like $_POST you can -access its values by calling the -<code class="docutils literal"><span class="pre">input_stream()</span></code> method:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">input_stream</span><span class="p">(</span><span class="s1">'key'</span><span class="p">);</span> -</pre></div> -</div> -<p>Similar to other methods such as <code class="docutils literal"><span class="pre">get()</span></code> and <code class="docutils literal"><span class="pre">post()</span></code>, if the -requested data is not found, it will return NULL and you can also -decide whether to run the data through <code class="docutils literal"><span class="pre">xss_clean()</span></code> by passing -a boolean value as the second parameter:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">input_stream</span><span class="p">(</span><span class="s1">'key'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// XSS Clean</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">input_stream</span><span class="p">(</span><span class="s1">'key'</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// No XSS filter</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">You can utilize <code class="docutils literal"><span class="pre">method()</span></code> in order to know if you’re reading -PUT, DELETE or PATCH data.</p> -</div> -</div> -</div> -<div class="section" id="class-reference"> -<h2><a class="toc-backref" href="#id7">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2> -<dl class="class"> -<dt id="CI_Input"> -<em class="property">class </em><code class="descname">CI_Input</code><a class="headerlink" href="#CI_Input" title="Permalink to this definition">¶</a></dt> -<dd><dl class="attribute"> -<dt> -<code class="descname">$raw_input_stream</code></dt> -<dd><p>Read only property that will return php://input data as is.</p> -<p>The property can be read multiple times.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::post"> -<code class="descname">post</code><span class="sig-paren">(</span><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::post" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$index</strong> (<em>mixed</em>) – POST parameter name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_POST if no parameters supplied, otherwise the POST value if found or 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>The first parameter will contain the name of the POST item you are -looking for:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">);</span> -</pre></div> -</div> -<p>The method returns NULL if the item you are attempting to retrieve -does not exist.</p> -<p>The second optional parameter lets you run the data through the XSS -filter. It’s enabled by setting the second parameter to boolean TRUE -or by setting your <code class="docutils literal"><span class="pre">$config['global_xss_filtering']</span></code> to TRUE.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -<p>To return an array of all POST items call without any parameters.</p> -<p>To return all POST items and pass them through the XSS filter set the -first parameter NULL while setting the second parameter to boolean TRUE.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// returns all POST items with XSS filter</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// returns all POST items without XSS filter</span> -</pre></div> -</div> -<p>To return an array of multiple POST parameters, pass all the required keys -as an array.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">));</span> -</pre></div> -</div> -<p>Same rule applied here, to retrieve the parameters with XSS filtering enabled, set the -second parameter to boolean TRUE.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">),</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::get"> -<code class="descname">get</code><span class="sig-paren">(</span><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::get" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$index</strong> (<em>mixed</em>) – GET parameter name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_GET if no parameters supplied, otherwise the GET value if found or 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 is identical to <code class="docutils literal"><span class="pre">post()</span></code>, only it fetches GET data.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -<p>To return an array of all GET items call without any parameters.</p> -<p>To return all GET items and pass them through the XSS filter set the -first parameter NULL while setting the second parameter to boolean TRUE.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// returns all GET items with XSS filter</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// returns all GET items without XSS filtering</span> -</pre></div> -</div> -<p>To return an array of multiple GET parameters, pass all the required keys -as an array.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">));</span> -</pre></div> -</div> -<p>Same rule applied here, to retrieve the parameters with XSS filtering enabled, set the -second parameter to boolean TRUE.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">),</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::post_get"> -<code class="descname">post_get</code><span class="sig-paren">(</span><em>$index</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::post_get" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$index</strong> (<em>string</em>) – POST/GET parameter name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">POST/GET value if found, NULL if not</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p> -</td> -</tr> -</tbody> -</table> -<p>This method works pretty much the same way as <code class="docutils literal"><span class="pre">post()</span></code> and <code class="docutils literal"><span class="pre">get()</span></code>, -only combined. It will search through both POST and GET streams for data, -looking in POST first, and then in GET:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post_get</span><span class="p">(</span><span class="s1">'some_data'</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_Input::get_post"> -<code class="descname">get_post</code><span class="sig-paren">(</span><em>$index</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::get_post" 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>$index</strong> (<em>string</em>) – GET/POST parameter name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">GET/POST value if 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 works the same way as <code class="docutils literal"><span class="pre">post_get()</span></code> only it looks for GET -data first.</p> -<blockquote> -<div>$this->input->get_post(‘some_data’, TRUE);</div></blockquote> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This method used to act EXACTLY like <code class="docutils literal"><span class="pre">post_get()</span></code>, but it’s -behavior has changed in CodeIgniter 3.0.</p> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::cookie"> -<code class="descname">cookie</code><span class="sig-paren">(</span><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::cookie" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$index</strong> (<em>mixed</em>) – COOKIE name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_COOKIE if no parameters supplied, otherwise the COOKIE value if found or 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 is identical to <code class="docutils literal"><span class="pre">post()</span></code> and <code class="docutils literal"><span class="pre">get()</span></code>, only it fetches cookie -data:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">cookie</span><span class="p">(</span><span class="s1">'some_cookie'</span><span class="p">);</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">cookie</span><span class="p">(</span><span class="s1">'some_cookie'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// with XSS filter</span> -</pre></div> -</div> -<p>To return an array of multiple cookie values, pass all the required keys -as an array.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">cookie</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'some_cookie'</span><span class="p">,</span> <span class="s1">'some_cookie2'</span><span class="p">));</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Unlike the <a class="reference internal" href="../helpers/cookie_helper.html"><span class="doc">Cookie Helper</span></a> -function <a class="reference internal" href="../helpers/cookie_helper.html#get_cookie" title="get_cookie"><code class="xref php php-func docutils literal"><span class="pre">get_cookie()</span></code></a>, this method does NOT prepend -your configured <code class="docutils literal"><span class="pre">$config['cookie_prefix']</span></code> value.</p> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::server"> -<code class="descname">server</code><span class="sig-paren">(</span><em>$index</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::server" 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>$index</strong> (<em>mixed</em>) – Value name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_SERVER item value if found, NULL if not</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p> -</td> -</tr> -</tbody> -</table> -<p>This method is identical to the <code class="docutils literal"><span class="pre">post()</span></code>, <code class="docutils literal"><span class="pre">get()</span></code> and <code class="docutils literal"><span class="pre">cookie()</span></code> -methods, only it fetches server data (<code class="docutils literal"><span class="pre">$_SERVER</span></code>):</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">);</span> -</pre></div> -</div> -<p>To return an array of multiple <code class="docutils literal"><span class="pre">$_SERVER</span></code> values, pass all the required keys -as an array.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'SERVER_PROTOCOL'</span><span class="p">,</span> <span class="s1">'REQUEST_URI'</span><span class="p">));</span> -</pre></div> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::input_stream"> -<code class="descname">input_stream</code><span class="sig-paren">(</span><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::input_stream" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$index</strong> (<em>mixed</em>) – Key name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Input stream array if no parameters supplied, otherwise the specified value if found or NULL if not</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p> -</td> -</tr> -</tbody> -</table> -<p>This method is identical to <code class="docutils literal"><span class="pre">get()</span></code>, <code class="docutils literal"><span class="pre">post()</span></code> and <code class="docutils literal"><span class="pre">cookie()</span></code>, -only it fetches the <em>php://input</em> stream data.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::set_cookie"> -<code class="descname">set_cookie</code><span class="sig-paren">(</span><em>$name = ''</em><span class="optional">[</span>, <em>$value = ''</em><span class="optional">[</span>, <em>$expire = ''</em><span class="optional">[</span>, <em>$domain = ''</em><span class="optional">[</span>, <em>$path = '/'</em><span class="optional">[</span>, <em>$prefix = ''</em><span class="optional">[</span>, <em>$secure = NULL</em><span class="optional">[</span>, <em>$httponly = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::set_cookie" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$name</strong> (<em>mixed</em>) – Cookie name or an array of parameters</li> -<li><strong>$value</strong> (<em>string</em>) – Cookie value</li> -<li><strong>$expire</strong> (<em>int</em>) – Cookie expiration time in seconds</li> -<li><strong>$domain</strong> (<em>string</em>) – Cookie domain</li> -<li><strong>$path</strong> (<em>string</em>) – Cookie path</li> -<li><strong>$prefix</strong> (<em>string</em>) – Cookie name prefix</li> -<li><strong>$secure</strong> (<em>bool</em>) – Whether to only transfer the cookie through HTTPS</li> -<li><strong>$httponly</strong> (<em>bool</em>) – Whether to only make the cookie accessible for HTTP requests (no JavaScript)</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> -</td> -</tr> -</tbody> -</table> -<p>Sets a cookie containing the values you specify. There are two ways to -pass information to this method so that a cookie can be set: Array -Method, and Discrete Parameters:</p> -<p><strong>Array Method</strong></p> -<p>Using this method, an associative array is passed to the first -parameter:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$cookie</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> - <span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'The Cookie Name'</span><span class="p">,</span> - <span class="s1">'value'</span> <span class="o">=></span> <span class="s1">'The Value'</span><span class="p">,</span> - <span class="s1">'expire'</span> <span class="o">=></span> <span class="s1">'86500'</span><span class="p">,</span> - <span class="s1">'domain'</span> <span class="o">=></span> <span class="s1">'.some-domain.com'</span><span class="p">,</span> - <span class="s1">'path'</span> <span class="o">=></span> <span class="s1">'/'</span><span class="p">,</span> - <span class="s1">'prefix'</span> <span class="o">=></span> <span class="s1">'myprefix_'</span><span class="p">,</span> - <span class="s1">'secure'</span> <span class="o">=></span> <span class="k">TRUE</span> -<span class="p">);</span> - -<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">set_cookie</span><span class="p">(</span><span class="nv">$cookie</span><span class="p">);</span> -</pre></div> -</div> -<p><strong>Notes</strong></p> -<p>Only the name and value are required. To delete a cookie set it with the -expiration blank.</p> -<p>The expiration is set in <strong>seconds</strong>, which will be added to the current -time. Do not include the time, but rather only the number of seconds -from <em>now</em> that you wish the cookie to be valid. If the expiration is -set to zero the cookie will only last as long as the browser is open.</p> -<p>For site-wide cookies regardless of how your site is requested, add your -URL to the <strong>domain</strong> starting with a period, like this: -.your-domain.com</p> -<p>The path is usually not needed since the method sets a root path.</p> -<p>The prefix is only needed if you need to avoid name collisions with -other identically named cookies for your server.</p> -<p>The <em>httponly</em> and <em>secure</em> flags, when omitted, will default to your -<code class="docutils literal"><span class="pre">$config['cookie_httponly']</span></code> and <code class="docutils literal"><span class="pre">$config['cookie_secure']</span></code> settings.</p> -<p><strong>Discrete Parameters</strong></p> -<p>If you prefer, you can set the cookie by passing data using individual -parameters:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">set_cookie</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$value</span><span class="p">,</span> <span class="nv">$expire</span><span class="p">,</span> <span class="nv">$domain</span><span class="p">,</span> <span class="nv">$path</span><span class="p">,</span> <span class="nv">$prefix</span><span class="p">,</span> <span class="nv">$secure</span><span class="p">);</span> -</pre></div> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::ip_address"> -<code class="descname">ip_address</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::ip_address" 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">Visitor’s IP address or ‘0.0.0.0’ if not valid</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td> -</tr> -</tbody> -</table> -<p>Returns the IP address for the current user. If the IP address is not -valid, the method will return ‘0.0.0.0’:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">ip_address</span><span class="p">();</span> -</pre></div> -</div> -<div class="admonition important"> -<p class="first admonition-title">Important</p> -<p class="last">This method takes into account the <code class="docutils literal"><span class="pre">$config['proxy_ips']</span></code> -setting and will return the reported HTTP_X_FORWARDED_FOR, -HTTP_CLIENT_IP, HTTP_X_CLIENT_IP or HTTP_X_CLUSTER_CLIENT_IP -address for the allowed IP addresses.</p> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::valid_ip"> -<code class="descname">valid_ip</code><span class="sig-paren">(</span><em>$ip</em><span class="optional">[</span>, <em>$which = ''</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::valid_ip" 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>$ip</strong> (<em>string</em>) – IP address</li> -<li><strong>$which</strong> (<em>string</em>) – IP protocol (‘ipv4’ or ‘ipv6’)</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE if the address is valid, 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">bool</p> -</td> -</tr> -</tbody> -</table> -<p>Takes an IP address as input and returns TRUE or FALSE (boolean) depending -on whether it is valid or not.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">The $this->input->ip_address() method above automatically -validates the IP address.</p> -</div> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">valid_ip</span><span class="p">(</span><span class="nv">$ip</span><span class="p">))</span> -<span class="p">{</span> - <span class="k">echo</span> <span class="s1">'Not Valid'</span><span class="p">;</span> -<span class="p">}</span> -<span class="k">else</span> -<span class="p">{</span> - <span class="k">echo</span> <span class="s1">'Valid'</span><span class="p">;</span> -<span class="p">}</span> -</pre></div> -</div> -<p>Accepts an optional second string parameter of ‘ipv4’ or ‘ipv6’ to specify -an IP format. The default checks for both formats.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::user_agent"> -<code class="descname">user_agent</code><span class="sig-paren">(</span><span class="optional">[</span><em>$xss_clean = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::user_agent" 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"><p class="first">User agent string or NULL if not set</p> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p> -</td> -</tr> -</tbody> -</table> -<p>Returns the user agent string (web browser) being used by the current user, -or NULL if it’s not available.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">user_agent</span><span class="p">();</span> -</pre></div> -</div> -<p>See the <a class="reference internal" href="user_agent.html"><span class="doc">User Agent Class</span></a> for methods which extract -information from the user agent string.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::request_headers"> -<code class="descname">request_headers</code><span class="sig-paren">(</span><span class="optional">[</span><em>$xss_clean = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::request_headers" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</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 HTTP request headers</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 an array of HTTP request headers. -Useful if running in a non-Apache environment where -<a class="reference external" href="http://php.net/apache_request_headers">apache_request_headers()</a> -will not be supported.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$headers</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">request_headers</span><span class="p">();</span> -</pre></div> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::get_request_header"> -<code class="descname">get_request_header</code><span class="sig-paren">(</span><em>$index</em><span class="optional">[</span>, <em>$xss_clean = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::get_request_header" 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>$index</strong> (<em>string</em>) – HTTP request header name</li> -<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An HTTP request header or NULL if not found</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>Returns a single member of the request headers array or NULL -if the searched header is not found.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get_request_header</span><span class="p">(</span><span class="s1">'some-header'</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_Input::is_ajax_request"> -<code class="descname">is_ajax_request</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::is_ajax_request" 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">TRUE if it is an Ajax request, FALSE if not</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">bool</td> -</tr> -</tbody> -</table> -<p>Checks to see if the HTTP_X_REQUESTED_WITH server header has been -set, and returns boolean TRUE if it is or FALSE if not.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::is_cli_request"> -<code class="descname">is_cli_request</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::is_cli_request" 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">TRUE if it is a CLI request, FALSE if not</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">bool</td> -</tr> -</tbody> -</table> -<p>Checks to see if the application was run from the command-line -interface.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This method checks both the PHP SAPI name currently in use -and if the <code class="docutils literal"><span class="pre">STDIN</span></code> constant is defined, which is usually a -failsafe way to see if PHP is being run via the command line.</p> -</div> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">is_cli_request</span><span class="p">()</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This method is DEPRECATED and is now just an alias for the -<code class="xref py py-func docutils literal"><span class="pre">is_cli()</span></code> function.</p> -</div> -</dd></dl> - -<dl class="method"> -<dt id="CI_Input::method"> -<code class="descname">method</code><span class="sig-paren">(</span><span class="optional">[</span><em>$upper = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Input::method" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$upper</strong> (<em>bool</em>) – Whether to return the request method name in upper or lower case</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">HTTP request method</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>Returns the <code class="docutils literal"><span class="pre">$_SERVER['REQUEST_METHOD']</span></code>, with the option to set it -in uppercase or lowercase.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">method</span><span class="p">(</span><span class="k">TRUE</span><span class="p">);</span> <span class="c1">// Outputs: POST</span> -<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">method</span><span class="p">(</span><span class="k">FALSE</span><span class="p">);</span> <span class="c1">// Outputs: post</span> -<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">method</span><span class="p">();</span> <span class="c1">// Outputs: post</span> -</pre></div> -</div> -</dd></dl> - -</dd></dl> - -</div> -</div> - - - </div> - <footer> - - <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> - - <a href="javascript.html" class="btn btn-neutral float-right" title="Javascript Class">Next <span class="fa fa-arrow-circle-right"></span></a> - - - <a href="image_lib.html" class="btn btn-neutral" title="Image Manipulation Class"><span class="fa fa-arrow-circle-left"></span> Previous</a> - - </div> - - - <hr/> - - <div role="contentinfo"> - <p> - © Copyright 2014 - 2019, British Columbia Institute of Technology. - Last updated on Jan 16, 2019. - </p> - </div> - - Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. - -</footer> - </div> - </div> - - </section> - - </div> - - - - - - <script type="text/javascript"> - var DOCUMENTATION_OPTIONS = { - URL_ROOT:'../', - VERSION:'3.1.10', - COLLAPSE_INDEX:false, - 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