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PHP introductory basic tutorial PHP array exercises

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Jul 25, 2016 am 09:00 AM

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 id="请裁判输入分数">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>

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 />';
?>

Thank you for paying attention to the PHP introductory tutorials. This series of PHP basic tutorials will help PHP newbies quickly master the PHP programming language. Programmer's Home will continue to launch PHP-related tutorials for everyone, and I wish you all the best in your learning and progress!

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