(PECL trader >= 0.2.0)
trader_adosc — Chaikin A/D Oscillator
$high,$low,$close,$volume,$fastPeriod = ?,$slowPeriod = ?
high高价，浮点数数组。
low低价，浮点数数组。
close收盘价，浮点数数组。
volume成交量，浮点数数组。
fastPeriodNumber of period for the fast MA. Valid range from 2 to 100000.
slowPeriodNumber of period for the slow MA. Valid range from 2 to 100000.
Returns an array with calculated data or false on failure.