: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Nextend\Framework\Form\Element\Button;
use Nextend\Framework\Form\Element\Button;
class ButtonIcon extends Button {
protected $hoverTip = '';
public function __construct($insertAt, $name = '', $label = '', $icon = '', $parameters = array()) {
$this->classes[] = 'n2_field_button--icon';
parent::__construct($insertAt, $name, $label, '<i class="' . $icon . '"></i>', $parameters);
protected function getAttributes() {
$attributes = parent::getAttributes();
if (!empty($this->hoverTip)) {
$attributes['data-n2tip'] = $this->hoverTip;
* @param string $hoverTip
public function setHoverTip($hoverTip) {
$this->hoverTip = $hoverTip;