protected function has_changes( $old, $new ) {

		foreach ( $new as $key => $value ) {
			if ( $value !== $old[ $key ] && ! $this->numerically_equivalent( $value, $old[ $key ] ) ) {
				return true;
			}
		}

		return false;
	}
protected function has_changes( $old, $new ) {

		foreach ( $new as $key => $value ) {
			if ( $value !== $old[ $key ] && ! $this->numerically_equivalent( $value, $old[ $key ] ) ) {
				return true;
			}
		}

		return false;
	}
protected function has_changes ( $ old , $ new ) { foreach ( $ new as $ key => $ value ) { if ( $ value !== $ old [ $ key ] && ! $ this -> numerically_equivalent ( $ value , $ old [ $ key ] ) ) { return true ; } } return false ; }
Check if there are changes.

@since 2.0

@param array $old
@param array $new

@return bool
Check if there are changes .