getTimestamp      461 ext/date/php_date.c 	PHP_ABSTRACT_ME(DateTimeInterface, getTimestamp, arginfo_date_method_timestamp_get)
getTimestamp      484 ext/date/php_date.c 	PHP_ME_MAPPING(getTimestamp,	date_timestamp_get, arginfo_date_method_timestamp_get, 0)
getTimestamp      498 ext/date/php_date.c 	PHP_ME_MAPPING(getTimestamp,	date_timestamp_get, arginfo_date_method_timestamp_get, 0)