trader_minindex (PECL trader >= 0.2.0)trader_minindex — Index of lowest value over a specified period 说明 trader_minindex(array $real, int $timePeriod = ?): array 参数 real 浮点数数组。 timePeriod Number of period. Valid range from 2 to 100000. 返回值 Returns an array with calculated data or false on failure.