title: Codeigniter Message: Use of undefined constant
body: <p>Hear is my code that i used.</p>
  
  <pre><code>$data = array(  question=&gt;$this-&gt;input-&gt;post('questions'),
                  answer1=&gt;$this-&gt;input-&gt;post('answer1'),
                  answer2=&gt;$this-&gt;input-&gt;post('answer2'),
                  answer3=&gt;$this-&gt;input-&gt;post('answer3'),
                  answer4=&gt;$this-&gt;input-&gt;post('answer4'),
                  answer5=&gt;$this-&gt;input-&gt;post('answer5'),
                  correctanswer=&gt;$this-&gt;input-&gt;post('correctanswer')
               );
  $this-&gt;db-&gt;insert('questionandanswers',$data);
  </code></pre>
  
  <p>Please provide help for this notice message.</p>
  
  <p>A PHP Error was encountered</p>
  
  <pre><code>Severity: Notice
  Message: Use of undefined constant question - assumed 'question'
  </code></pre>