Both simpleEncode() functions (js and php) support a maxValue
parameter but your PHP version defaults the max value to the maximum
value in your array. As such the PHP version is scaling your data as
if it was specified in the 0--61 range.
Your 39 becomes (39 / 43) * 61 = 55 (or s:3)
Your 43
The docs for the new Google Charts API include a Javascript function
called simpleEncode. It demonstrates encoding a data set into a
“Simple encoding” as expected by the API...followed by a PHP
function which does the same thing.
function simpleEncode($values, $maxValue=-1)
{
