?php6_1 ?sum.php?

<?php
$tokuten = array(52,29,58,98,100,91,27,51,92,85);

#??????
#$sum = 0;
#$sum = $sum + 52; ??$sum = 0 + 52;
#$sum = $sum + 29; ??$sum = 52 + 29;
#$sum = $sum + 58; ??$sum = 81 + 58;
#????????????????????

$sum = 0;
foreach($tokuten as $t){
$sum = $sum + $t;
}

$avg = $sum/count($tokuten);
echo "????? $sum ???\n";
echo "????? $avg ???\n";
?>