input instanceof FormInputWithOptionsBase) { throw new Exception( __( 'Cannot use Select Multiple Display Strategy with an input that doesn\'t have options', 'print-my-blog' ) ); } $html_generator = Html::instance(); $html = $html_generator->nl(0, 'select'); $html .= 'input->htmlId() . '"'; $html .= ' name="' . $this->input->htmlName() . '[]"'; $class = $this->input->required() ? $this->input->requiredCssClass() . ' ' . $this->input->htmlClass() : $this->input->htmlClass(); $html .= ' class="' . $class . '"'; // add html5 required $html .= $this->input->required() ? ' required' : ''; $html .= ' style="' . $this->input->htmlStyle() . '"'; $html .= ' ' . $this->input->otherHtmlAttributesString(); $html .= '>'; $html_generator->indent(1, 'select'); if (Array2::isMultiDimensionalArray($this->input->options())) { throw new Exception( __('Select multiple display strategy does not allow for nested arrays of options.', 'print-my-blog') ); } else { $html .= $this->displayOptions($this->input->options()); } $html .= $html_generator->nl(-1, 'select') . ''; return $html; } /** * Checks if that $value is one of the selected ones * @param string|int $value unnormalized value option (string) * @return boolean */ protected function checkIfOptionSelected($value) { $selected_options = $this->input->rawValue(); if (empty($selected_options)) { return false; } // Want loose comparison. // phpcs:ignore WordPress.PHP.StrictInArray.MissingTrueStrict return in_array($value, (array)$selected_options) ? true : false; } }