title: Testing for negative numbers
body: <p>I read in a csv and put it in an multi-dimensional array</p>
  
  <p>Depending on an array value of one of the item I colour the row read.  This works well for positive values of less than a threshold but for negative it is not satisfying this case so for values of cxy below I have -8, -30, -24 being printed corrected but the colour the row is not edited as per condition.  Why is that?</p>
  
  <pre><code>$rows   = array_map('str_getcsv', file($_GET['result_view']));
  $header = array_shift($rows);
  $csv    = array();
  foreach($rows as $row) {
      $csv[] = array_combine($header, $row);
  }
  
  foreach($csv as $row){
  
     if ( $row["cxy"] &lt; 10 ) {
         print('&lt;tr bgcolor="#ff0000"&gt;');
     }
     else
     {
         echo "&lt;tr&gt;";
     }
  
     foreach ($row as $cell) {
         echo "&lt;td&gt;" . ($cell) . "&lt;/td&gt;";
     }
     echo "&lt;/tr&gt;\n";
  </code></pre>