interval_string  4170 ext/date/php_date.c 	char *interval_string = NULL;
interval_string  4177 ext/date/php_date.c 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &interval_string, &interval_string_length) == SUCCESS) {
interval_string  4178 ext/date/php_date.c 		if (date_interval_initialize(&reltime, interval_string, interval_string_length TSRMLS_CC) == SUCCESS) {