/** * @brief Get the last modification time for the object. * * Must return a UNIX time stamp or null if the backend * doesn't support it. * * @return int | null */ public function lastModified() { return $this->backend->lastModifiedAddressBook($this->getId()); }
public function testGetLastModifiedAddressBook() { $this->assertNull($this->backend->lastModifiedAddressBook('foo')); }