头歌php数组答案

/********** Begin *********/
foreach($wage as $key=>$value){
    echo $key."部门人员如下：";
    echo "<br>";
    if(is_array($value)){
        foreach($value as $key1=>$value1){
            echo $value1[0]." ".$value1[1]." ".$value1[2]." ".$value1[3]." ";
            echo "<br>";
        }
    }
}
/********** End *********/
?>
/********** Begin *********/
$maxkey = array_search(max($grade),$grade);
$minkey = array_search(min($grade),$grade);
echo "打出最低分的裁判为：".$minkey."，打分为：".min($grade)."<br>";
echo "打出最高分的裁判为：".$maxkey."，打分为：".max($grade);
//移除最大和最小
unset($grade[$maxkey]);
unset($grade[$minkey]);
$num = null;
foreach($grade as $name => $vlue){
    $num += $vlue;
}
$x = $num/count($grade);
echo "<br>最后得分为：".$x;
/********** End *********/
/********** Begin *********/
arsort($age);
foreach($age as $key=>$value){
    echo $key;
    echo "<br>";
}