(PECL trader >= 0.2.0)
Parabolic SAR - Extended
array trader_sarext ( array $high, array $low [, float $startValue [, float $offsetOnReverse [, float $accelerationInitLong [, float $accelerationLong [, float $accelerationMaxLong [, float $accelerationInitShort [, float $accelerationShort [, float $accelerationMaxShort ]]]]]]]] )
Parameters:
high
High price, array of real