PSAR on external array - not on currency pairs IE symbol

Hi
has anyone coded a psar routine to run on a external array ?
or
does anyone have code that will extract psar values from a custom input array ?

So within mt4 we get iSAR , but that is limited to currency pairs , ex. Symbol.

double iSAR(
string symbol, // symbol
int timeframe, // timeframe
double step, // price increment step - acceleration factor
double maximum, // maximum value of step
int shift // shift
);

What Im looking for is code that will calculate PSAR on a external array , all the source code that I have found does it on a currency pair only.
If I cant find something like this Im going to code it myself , as my newest endeavor is to calculate and plot the PSAR values from a array that
has custom values in it.

thanks