interval_string  4086 ext/date/php_date.c 	char *interval_string = NULL;
interval_string  4092 ext/date/php_date.c 	if (zend_parse_parameters_throw(ZEND_NUM_ARGS(), "s", &interval_string, &interval_string_length) == FAILURE) {
interval_string  4097 ext/date/php_date.c 	if (date_interval_initialize(&reltime, interval_string, interval_string_length) == SUCCESS) {