lithium\template\helper\Form::_selectOptions()

protected method

Generator method used by select() to produce <option /> and <optgroup /> elements. Generally, this method should not need to be called directly, but through select().

Parameters

array $list
Either a flat key/value array of select menu options, or an array which contains key/value elements and/or elements where the keys are <optgroup /> titles and the values are sub-arrays of key/value pairs representing nested <option /> elements.
array $scope
An array of options passed to the parent scope, including the currently selected value of the associated form element.

Returns

string

Returns a string of <option /> and (optionally) <optgroup /> tags to be embedded in a select element.

Source

	protected function _selectOptions(array $list, array $scope) {
		$result = "";

		foreach ($list as $value => $title) {
			if (is_array($title)) {
				$label = $value;
				$options = [];

				$raw = $this->_selectOptions($title, $scope);
				$params = compact('label', 'options', 'raw');
				$result .= $this->_render('select', 'option-group', $params);
				continue;
			}
			$selected = (
				(is_array($scope['value']) && in_array($value, $scope['value'])) ||
				($scope['empty'] && empty($scope['value']) && $value === '') ||
				(is_scalar($scope['value']) && ((string) $scope['value'] === (string) $value))
			);
			$options = $selected ? ['selected' => true] : [];
			$params = compact('value', 'title', 'options');
			$result .= $this->_render('select', 'select-option',  $params);
		}
		return $result;
	}