PHP extension-wrapper for embedded R language

PHP API:

 void R::init([array argv])
---------------------------
Initialize the R environment, takes options as arguments.
Options "--gui=none" and "--silent" are hardcoded.

Example:
 $r = new R;
 $r->init(array("digits"=>5));


 void R::end([bool fatal])
--------------------------
Destroy the R environment and frees all the resources.
Use fatal=TRUE flag for emergency bail out.


 mixed R::parseEval(string code[, mixed &result])
-------------------------------------------------
Parse and execute R code. 
The result argument can be used to return the result of the execution.
In this case function returns true in case of success and false in case of failure.


 mixed R::__call(string function_name, array arguments)
-------------------------------------------------------
Call a function with arguments.

Example:

$r = new R;
$r->init();
$r->parseEval("
	fibonacci <- function(n) {
		fib <- numeric(n)
			fib [1:2] <- 1
			for (i in 3:n) {
				fib[i] <- fib[i-1] + fib[i-2]
			}
		return(fib[n])
	}
");
var_dump($r->fibonacci(40));

 mixed R::callWithNames(string function_name, array arguments)
--------------------------------------------------------------
Call a function with (optionally) named arguments.
Named arguments may come in any order, that's the only difference from using __call().