PHP introductory basic tutorial PHP array exercises-PHP Tutorial-php.cn

PHP introductory basic tutorial PHP array exercises

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Release： 2016-07-25 09:00:13

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This section introduces you to the exercises of php arrays and an exercise question about the results of a diving competition for your reference.

Title: 1. In the diving competition, 8 judges will give scores. The athlete’s score is the 8 scores minus the highest score and the lowest score. The average of the remaining 6 points is the final score. Use a one-dimensional array to implement the scoring function. 2. And find out the judges with the highest and lowest scores.

Example 1: 1.php

<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" >
</head>
<body>
<h1>请裁判输入分数</h1>
<form action="2.php" method="post">
    裁判1<input type="text" name ="one"><br/>
    裁判2<input type="text" name ="two"><br/>
    裁判3<input type="text" name ="three"><br/>
    裁判4<input type="text" name ="four"><br/>
    裁判5<input type="text" name ="five"><br/>
    裁判6<input type="text" name ="six"><br/>
    裁判7<input type="text" name ="seven"><br/>
    裁判8<input type="text" name ="eight"><br/>
    <input type="submit" value = "提交">
</form>
</body>
</html>

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Example 2: 2.php

<?php    
/**
* 接收数据
* site bbs.it-home.org
*/
$p1=$_REQUEST['one'];
$p2=$_REQUEST['two'];
$p3=$_REQUEST['three'];
$p4=$_REQUEST['four'];
$p5=$_REQUEST['five'];
$p6=$_REQUEST['six'];
$p7=$_REQUEST['seven'];
$p8=$_REQUEST['eight'];

//把每个人输入的值 放入到数组中
$arr = array($p1,$p2,$p3,$p4,$p5,$p6,$p7,$p8);

//print_r($arr);
//取出最大和最小的值
$p_max=max($arr);
$p_min=min($arr);
//print_r($arr);
//echo $p_max,$p_min;
//echo "<br />";
//定义变量计算总分
$total=0;
/*
for($i=0;$i<count($arr);$i++){
    //echo $arr[$i]."<br />";
    $total+=$arr[$i];
}
*/
foreach($arr as $v){
    
    $total+=$v;
}
//echo $total."<br/>";
//减去最高最低分,最后得分
//平均分
//round函数 保留小数位||这是四舍五入法保留3位小数
$last=($total-max($arr)-min($arr))/(count($arr)-2);
//$last=($total-max($arr)-min($arr));
echo '除去最高分和最低分的最后得分为:'.($total-max($arr)-min($arr))."<br/>";
echo '除去最高分和最低分的最后得分的平均分为:'.round($last,3)."<br/>";

//找出最大值和最小值对映的key :array_search函数.
$max_k=array_search(max($arr),$arr);
$min_k=array_search(min($arr),$arr);
echo '最高分是第'.($max_k+1).'评委打'.max($arr).'分<br />';
echo '最低分是第'.($min_k+1).'评委打'.min($arr).'分<br />';
?>

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