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<section id="database-quick-start-example-code">
<h1>Database Quick Start: Example Code<a class="headerlink" href="#database-quick-start-example-code" title="Permalink to this headline"></a></h1>
<p>The following page contains example code showing how the database class
is used. For complete details please read the individual pages
describing each function.</p>
<div class="contents local topic" id="contents">
<ul class="simple">
<li><p><a class="reference internal" href="#initializing-the-database-class" id="id1">Initializing the Database Class</a></p></li>
<li><p><a class="reference internal" href="#standard-query-with-multiple-results-object-version" id="id2">Standard Query With Multiple Results (Object Version)</a></p></li>
<li><p><a class="reference internal" href="#standard-query-with-multiple-results-array-version" id="id3">Standard Query With Multiple Results (Array Version)</a></p></li>
<li><p><a class="reference internal" href="#standard-query-with-single-result" id="id4">Standard Query With Single Result</a></p></li>
<li><p><a class="reference internal" href="#standard-query-with-single-result-array-version" id="id5">Standard Query With Single Result (Array version)</a></p></li>
<li><p><a class="reference internal" href="#standard-insert" id="id6">Standard Insert</a></p></li>
<li><p><a class="reference internal" href="#query-builder-query" id="id7">Query Builder Query</a></p></li>
<li><p><a class="reference internal" href="#query-builder-insert" id="id8">Query Builder Insert</a></p></li>
</ul>
</div>
<section id="initializing-the-database-class">
<h2><a class="toc-backref" href="#id1">Initializing the Database Class</a><a class="headerlink" href="#initializing-the-database-class" title="Permalink to this headline"></a></h2>
<p>The following code loads and initializes the database class based on
your <a class="reference internal" href="configuration.html"><span class="doc">configuration</span></a> settings:</p>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$db</span> <span class="o">=</span> <span class="nx">\Config\Database</span><span class="o">::</span><span class="na">connect</span><span class="p">();</span>
</pre></div>
</div>
<p>Once loaded the class is ready to be used as described below.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>If all your pages require database access you can connect
automatically. See the <a class="reference internal" href="connecting.html"><span class="doc">connecting</span></a> page for details.</p>
</div>
</section>
<section id="standard-query-with-multiple-results-object-version">
<h2><a class="toc-backref" href="#id2">Standard Query With Multiple Results (Object Version)</a><a class="headerlink" href="#standard-query-with-multiple-results-object-version" title="Permalink to this headline"></a></h2>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="s1">&#39;SELECT name, title, email FROM my_table&#39;</span><span class="p">);</span>
<span class="nv">$results</span> <span class="o">=</span> <span class="nv">$query</span><span class="o">-&gt;</span><span class="na">getResult</span><span class="p">();</span>
<span class="k">foreach</span> <span class="p">(</span><span class="nv">$results</span> <span class="k">as</span> <span class="nv">$row</span><span class="p">)</span> <span class="p">{</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="o">-&gt;</span><span class="na">title</span><span class="p">;</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="o">-&gt;</span><span class="na">name</span><span class="p">;</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="o">-&gt;</span><span class="na">email</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">echo</span> <span class="s1">&#39;Total Results: &#39;</span> <span class="o">.</span> <span class="nb">count</span><span class="p">(</span><span class="nv">$results</span><span class="p">);</span>
</pre></div>
</div>
<div class="line-block">
<div class="line">The above <code class="docutils literal notranslate"><span class="pre">getResult()</span></code> function returns an array of <strong>objects</strong>.</div>
<div class="line">Example: <code class="docutils literal notranslate"><span class="pre">$row-&gt;title</span></code></div>
</div>
</section>
<section id="standard-query-with-multiple-results-array-version">
<h2><a class="toc-backref" href="#id3">Standard Query With Multiple Results (Array Version)</a><a class="headerlink" href="#standard-query-with-multiple-results-array-version" title="Permalink to this headline"></a></h2>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="s1">&#39;SELECT name, title, email FROM my_table&#39;</span><span class="p">);</span>
<span class="nv">$results</span> <span class="o">=</span> <span class="nv">$query</span><span class="o">-&gt;</span><span class="na">getResultArray</span><span class="p">();</span>
<span class="k">foreach</span> <span class="p">(</span><span class="nv">$results</span> <span class="k">as</span> <span class="nv">$row</span><span class="p">)</span> <span class="p">{</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="p">[</span><span class="s1">&#39;title&#39;</span><span class="p">];</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">];</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="p">[</span><span class="s1">&#39;email&#39;</span><span class="p">];</span>
<span class="p">}</span>
</pre></div>
</div>
<div class="line-block">
<div class="line">The above <code class="docutils literal notranslate"><span class="pre">getResultArray()</span></code> function returns an array of standard array
indexes.</div>
<div class="line">Example: <code class="docutils literal notranslate"><span class="pre">$row['title']</span></code></div>
</div>
</section>
<section id="standard-query-with-single-result">
<h2><a class="toc-backref" href="#id4">Standard Query With Single Result</a><a class="headerlink" href="#standard-query-with-single-result" title="Permalink to this headline"></a></h2>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="s1">&#39;SELECT name FROM my_table LIMIT 1&#39;</span><span class="p">);</span>
<span class="nv">$row</span> <span class="o">=</span> <span class="nv">$query</span><span class="o">-&gt;</span><span class="na">getRow</span><span class="p">();</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="o">-&gt;</span><span class="na">name</span><span class="p">;</span>
</pre></div>
</div>
<p>The above <code class="docutils literal notranslate"><span class="pre">getRow()</span></code> function returns an <strong>object</strong>. Example: <code class="docutils literal notranslate"><span class="pre">$row-&gt;name</span></code></p>
</section>
<section id="standard-query-with-single-result-array-version">
<h2><a class="toc-backref" href="#id5">Standard Query With Single Result (Array version)</a><a class="headerlink" href="#standard-query-with-single-result-array-version" title="Permalink to this headline"></a></h2>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="s1">&#39;SELECT name FROM my_table LIMIT 1&#39;</span><span class="p">);</span>
<span class="nv">$row</span> <span class="o">=</span> <span class="nv">$query</span><span class="o">-&gt;</span><span class="na">getRowArray</span><span class="p">();</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">];</span>
</pre></div>
</div>
<p>The above <code class="docutils literal notranslate"><span class="pre">getRowArray()</span></code> function returns an <strong>array</strong>. Example:
<code class="docutils literal notranslate"><span class="pre">$row['name']</span></code>.</p>
</section>
<section id="standard-insert">
<h2><a class="toc-backref" href="#id6">Standard Insert</a><a class="headerlink" href="#standard-insert" title="Permalink to this headline"></a></h2>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$sql</span> <span class="o">=</span> <span class="s1">&#39;INSERT INTO mytable (title, name) VALUES (&#39;</span> <span class="o">.</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">escape</span><span class="p">(</span><span class="nv">$title</span><span class="p">)</span> <span class="o">.</span> <span class="s1">&#39;, &#39;</span> <span class="o">.</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">escape</span><span class="p">(</span><span class="nv">$name</span><span class="p">)</span> <span class="o">.</span> <span class="s1">&#39;)&#39;</span><span class="p">;</span>
<span class="nv">$db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="nv">$sql</span><span class="p">);</span>
<span class="k">echo</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">affectedRows</span><span class="p">();</span>
</pre></div>
</div>
</section>
<section id="query-builder-query">
<h2><a class="toc-backref" href="#id7">Query Builder Query</a><a class="headerlink" href="#query-builder-query" title="Permalink to this headline"></a></h2>
<p>The <a class="reference internal" href="query_builder.html"><span class="doc">Query Builder Pattern</span></a> gives you a simplified
means of retrieving data:</p>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$db</span><span class="o">-&gt;</span><span class="na">table</span><span class="p">(</span><span class="s1">&#39;table_name&#39;</span><span class="p">)</span><span class="o">-&gt;</span><span class="na">get</span><span class="p">();</span>
<span class="k">foreach</span> <span class="p">(</span><span class="nv">$query</span><span class="o">-&gt;</span><span class="na">getResult</span><span class="p">()</span> <span class="k">as</span> <span class="nv">$row</span><span class="p">)</span> <span class="p">{</span>
<span class="k">echo</span> <span class="nv">$row</span><span class="o">-&gt;</span><span class="na">title</span><span class="p">;</span>
<span class="p">}</span>
</pre></div>
</div>
<p>The above <code class="docutils literal notranslate"><span class="pre">get()</span></code> function retrieves all the results from the supplied
table. The <a class="reference internal" href="query_builder.html"><span class="doc">Query Builder</span></a> class contains a full
complement of functions for working with data.</p>
</section>
<section id="query-builder-insert">
<h2><a class="toc-backref" href="#id8">Query Builder Insert</a><a class="headerlink" href="#query-builder-insert" title="Permalink to this headline"></a></h2>
<div class="highlight-html+php notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span>
<span class="nv">$data</span> <span class="o">=</span> <span class="p">[</span>
<span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="nv">$title</span><span class="p">,</span>
<span class="s1">&#39;name&#39;</span> <span class="o">=&gt;</span> <span class="nv">$name</span><span class="p">,</span>
<span class="s1">&#39;date&#39;</span> <span class="o">=&gt;</span> <span class="nv">$date</span><span class="p">,</span>
<span class="p">];</span>
<span class="nv">$db</span><span class="o">-&gt;</span><span class="na">table</span><span class="p">(</span><span class="s1">&#39;mytable&#39;</span><span class="p">)</span><span class="o">-&gt;</span><span class="na">insert</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span>
<span class="c1">// Produces: INSERT INTO mytable (title, name, date) VALUES (&#39;{$title}&#39;, &#39;{$name}&#39;, &#39;{$date}&#39;)</span>
</pre></div>
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