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Helper</a></li> +<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li> +<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li> +</ul> +</li> +</ul> + + + + </div> + + </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">General Topics</a> »</li> + + <li>Running via the CLI</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="running-via-the-cli"> +<h1><a class="toc-backref" href="#id1">Running via the CLI</a><a class="headerlink" href="#running-via-the-cli" title="Permalink to this headline">¶</a></h1> +<p>As well as calling an applications <a class="reference internal" href="controllers.html"><span class="doc">Controllers</span></a> +via the URL in a browser they can also be loaded via the command-line +interface (CLI).</p> +<div class="contents topic" id="page-contents"> +<p class="topic-title first">Page Contents</p> +<ul class="simple"> +<li><a class="reference internal" href="#running-via-the-cli" id="id1">Running via the CLI</a><ul> +<li><a class="reference internal" href="#what-is-the-cli" id="id2">What is the CLI?</a></li> +<li><a class="reference internal" href="#why-run-via-the-command-line" id="id3">Why run via the command-line?</a></li> +<li><a class="reference internal" href="#let-s-try-it-hello-world" id="id4">Let’s try it: Hello World!</a></li> +<li><a class="reference internal" href="#that-s-it" id="id5">That’s it!</a></li> +</ul> +</li> +</ul> +</div> +<div class="section" id="what-is-the-cli"> +<h2><a class="toc-backref" href="#id2">What is the CLI?</a><a class="headerlink" href="#what-is-the-cli" title="Permalink to this headline">¶</a></h2> +<p>The command-line interface is a text-based method of interacting with +computers. For more information, check the <a class="reference external" href="http://en.wikipedia.org/wiki/Command-line_interface">Wikipedia +article</a>.</p> +</div> +<div class="section" id="why-run-via-the-command-line"> +<h2><a class="toc-backref" href="#id3">Why run via the command-line?</a><a class="headerlink" href="#why-run-via-the-command-line" title="Permalink to this headline">¶</a></h2> +<p>There are many reasons for running CodeIgniter from the command-line, +but they are not always obvious.</p> +<ul class="simple"> +<li>Run your cron-jobs without needing to use <em>wget</em> or <em>curl</em></li> +<li>Make your cron-jobs inaccessible from being loaded in the URL by +checking the return value of <a class="reference internal" href="common_functions.html#is_cli" title="is_cli"><code class="xref php php-func docutils literal"><span class="pre">is_cli()</span></code></a>.</li> +<li>Make interactive “tasks” that can do things like set permissions, +prune cache folders, run backups, etc.</li> +<li>Integrate with other applications in other languages. For example, a +random C++ script could call one command and run code in your models!</li> +</ul> +</div> +<div class="section" id="let-s-try-it-hello-world"> +<h2><a class="toc-backref" href="#id4">Let’s try it: Hello World!</a><a class="headerlink" href="#let-s-try-it-hello-world" title="Permalink to this headline">¶</a></h2> +<p>Let’s create a simple controller so you can see it in action. Using your +text editor, create a file called Tools.php, and put the following code +in it:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span> +<span class="k">class</span> <span class="nc">Tools</span> <span class="k">extends</span> <span class="nx">CI_Controller</span> <span class="p">{</span> + + <span class="k">public</span> <span class="k">function</span> <span class="nf">message</span><span class="p">(</span><span class="nv">$to</span> <span class="o">=</span> <span class="s1">'World'</span><span class="p">)</span> + <span class="p">{</span> + <span class="k">echo</span> <span class="s2">"Hello </span><span class="si">{</span><span class="nv">$to</span><span class="si">}</span><span class="s2">!"</span><span class="o">.</span><span class="nx">PHP_EOL</span><span class="p">;</span> + <span class="p">}</span> +<span class="p">}</span> +</pre></div> +</div> +<p>Then save the file to your <em>application/controllers/</em> folder.</p> +<p>Now normally you would visit the site using a URL similar to this:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">example</span><span class="o">.</span><span class="nx">com</span><span class="o">/</span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">tools</span><span class="o">/</span><span class="nx">message</span><span class="o">/</span><span class="nx">to</span> +</pre></div> +</div> +<p>Instead, we are going to open the terminal in Mac/Linux or go to Run > “cmd” +in Windows and navigate to our CodeIgniter project.</p> +<div class="highlight-bash"><div class="highlight"><pre><span></span>$ <span class="nb">cd</span> /path/to/project<span class="p">;</span> +$ php index.php tools message +</pre></div> +</div> +<p>If you did it right, you should see <em>Hello World!</em> printed.</p> +<div class="highlight-bash"><div class="highlight"><pre><span></span>$ php index.php tools message <span class="s2">"John Smith"</span> +</pre></div> +</div> +<p>Here we are passing it an argument in the same way that URL parameters +work. “John Smith” is passed as an argument and the output is:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">Hello</span> <span class="nx">John</span> <span class="nx">Smith</span><span class="o">!</span> +</pre></div> +</div> +</div> +<div class="section" id="that-s-it"> +<h2><a class="toc-backref" href="#id5">That’s it!</a><a class="headerlink" href="#that-s-it" title="Permalink to this headline">¶</a></h2> +<p>That, in a nutshell, is all there is to know about controllers on the +command line. Remember that this is just a normal controller, so routing +and <code class="docutils literal"><span class="pre">_remap()</span></code> works fine.</p> +</div> +</div> + + + </div> + <footer> + + <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> + + <a href="managing_apps.html" class="btn btn-neutral float-right" title="Managing your Applications">Next <span class="fa fa-arrow-circle-right"></span></a> + + + <a href="profiling.html" class="btn btn-neutral" title="Profiling Your Application"><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, + FILE_SUFFIX:'.html', + HAS_SOURCE: false + }; + </script> + <script type="text/javascript" src="../_static/jquery.js"></script> + <script type="text/javascript" src="../_static/underscore.js"></script> + <script type="text/javascript" src="../_static/doctools.js"></script> + + + + + + <script type="text/javascript" src="../_static/js/theme.js"></script> + + + + + <script type="text/javascript"> + jQuery(function () { + SphinxRtdTheme.StickyNav.enable(); + }); + </script> + + +</body> +</html>
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