(PECL trader >= 0.2.0)
trader_apo — Absolute Price Oscillator
$real
   [, integer $fastPeriod
   [, integer $slowPeriod
   [, integer $mAType
  ]]] )
real
    Array of real values.
fastPeriod
    Number of period for the fast MA. Valid range from 2 to 100000.
slowPeriod
    Number of period for the slow MA. Valid range from 2 to 100000.
mAType
    Type of Moving Average. TRADER_MA_TYPE_* series of constants should be used.
Returns an array with calculated data or false on failure.