catch errors in unsafe php objects as they are iterated on

Author: MarkBerube

src/WP_CLI/SearchReplacer.php

@@ -119,8 +119,19 @@ private function run_recursively( $data, $serialised, $recursion_level = 0, $vis
 						)
 					);
 				} else {
-					foreach ( $data as $key => $value ) {
-						$data->$key = $this->run_recursively( $value, false, $recursion_level + 1, $visited_data );
+					try {
+						foreach ( $data as $key => $value ) {
+							$data->$key = $this->run_recursively( $value, false, $recursion_level + 1, $visited_data );
+						}
+					} catch ( \Error $e ) {
+						\WP_CLI::warning(
+							sprintf(
+								'Skipping an inconvertible serialized object: "%s", replacements might not be complete.',
+								$data
+							)
+						);
+
+						throw new Exception();
 					}
 				}
 			} elseif ( is_string( $data ) ) {