e rolled back – even if the queries produce
a valid result. To use test mode simply set the first parameter in the
$this-&gt;db-&gt;trans_start() function to TRUE:</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">db</span><span class="o">-&gt;</span><span class="na">trans_start</span><span class="p">(</span><span class="k">TRUE</span><span class="p">);</span> <span class="c1">// Query will be rolled back</span>