Write PHP that calculates the average value and the maximum value for any associative array $rating that follows the following format. You may assume $rating's values are always non-negative. The below array has 9 values, but future examples could have more keys/values. $rating array( "TPM"=>4, "AOTC"=>2, "ROTS"=>4, "ANH"=>4, "TESB"=>5, "ROT]"=>4, "TFA"=>2, "TLJ"=>3, "TROS"=>1); #your php code here echo $average; #prints 3.2222222222222 echo " "; echo $maxval; #prints 5