gw-consolidate-multiple-list-fields-to-single-list-field.php: Added snippet to consolidate multiple list fields to a single list field.

Author: saifsultanc

gravity-forms/gw-consolidate-multiple-list-fields-to-single-list-field.php

@@ -19,7 +19,10 @@
 	foreach ( $source_field_ids as $field_id ) {
 		if ( isset( $entry[ $field_id ] ) && ! empty( $entry[ $field_id ] ) ) {
 			$field_values = unserialize( $entry[ $field_id ] );
-			$combined     = array_merge( $combined, $field_values );
+			if ( ! $field_values || ! is_array( $field_values ) ) {
+				$field_values = array();
+			}
+			$combined = array_merge( $combined, $field_values );
 		}
 	}