: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
use WPForms\Helpers\PluginSilentUpgraderSkin;
* Skin for on-the-fly addon installations.
* @since 1.5.6.1 Extend PluginSilentUpgraderSkin and clean up the class.
class WPForms_Install_Skin extends PluginSilentUpgraderSkin {
* Instead of outputting HTML for errors, json_encode the errors and send them
* back to the Ajax script for processing.
* @param array $errors Array of errors with the install process.
public function error( $errors ) {
if ( ! empty( $errors ) ) {
wp_send_json_error( $errors );