Merge pull request #1532 from ultimatemember/fix/hide-empty-phone-field

Fixed: UM links to empty phone numbers

includes/core/class-form.php

@@ -856,6 +856,7 @@ if ( ! class_exists( 'um\core\Form' ) ) {
 										case 'vimeo_video':
 										case 'soundcloud_track':
 										case 'spotify':
+										case 'tel':
 											$form[ $k ] = sanitize_text_field( $form[ $k ] );
 											break;
 										case 'multiselect':

includes/core/um-filters-fields.php

@@ -141,9 +141,14 @@ add_filter( 'um_profile_field_filter_hook__vimeo_video', 'um_profile_field_filte
  * @param $value
  * @param $data
  *
- * @return int|string
+ * @return string
  */
 function um_profile_field_filter_hook__phone( $value, $data ) {
+	if ( empty( trim( str_replace( '+', '', $value ) ) ) ) {
+		return '';
+	}
+
+	$value = trim( $value );
 	$value = '<a href="' . esc_url( 'tel:' . $value ) . '" rel="nofollow" title="' . esc_attr( $data['title'] ) . '">' . esc_html( $value ) . '</a>';
 	return $value;
 }