/**
  * Get a span icon
  * @param string $iconName - The name of the icon
  * @param array $options - Html option
  * @param string $base - Base class of the icon
  * @param string $prefix - The prefix of the icon
  * @return <span class="$base $prefix$name"></span>
  */
 public function getSpanIcon($iconName, $options = [], $base = 'glyphicon', $prefix = 'glyphicon-')
 {
     $iconCss = GeneralFunctions::getIconClass($iconName, $base, $prefix);
     $options['class'] = GeneralFunctions::combineValues($options, 'class', $iconCss);
     return $this->Html->tag('span', '', $options);
 }