预览界面
源码：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style type="text/css">
table{
text-align: center;
}
</style>
</head>
<body>
<form action="" name="number" method="post">
Input the number of student:
<input type="number" name="stuNum"/>
<input type="submit" value="OK" name="submitStu"/>
</form>
</body>
</html> <?php
if(isset($_POST['submitStu'])){
$stuNum=$_POST['stuNum'];
if($stuNum>=0){
echo '<div>';
echo '<form action="" method="post" name="form1">';
echo '<table border="1" >';
echo '<tr><td>Sno:</td><td>Name:</td><td>Score:</td></tr>';
for($i=0;$i<$stuNum;$i++){
echo '<tr><td><input type="text" name="XH[]"/></td><td><input type="text" name="XM[]"/></td><td><input type="text" name="CJ[]"/></td></tr>';
}
echo '<tr><td colspan="3"><input type="submit" value="OK" name="bt_stu"/></td></tr>';
echo '</table>';
echo '</form>';
echo '</div>';
}else{
echo "Please input corrent num";
}
}
?> <?php if(isset($_POST['bt_stu'])){
$XH=$_POST['XH'];
$XM=$_POST['XM'];
$CJ=$_POST['CJ'];
array_multisort($CJ,$XH,$XM);
$sum[]=null;
for($i=0;$i<count($XH);$i++){
$sum[$i]=array($XH[$i],$XM[$i],$CJ[$i]); //里面每一个元素都是一个数组
}
echo '<div>The score has been sort:</div><br>';
echo '<div>';
echo '<table border="1">';
echo '<tr><td>Sno:</td><td>Name:</td><td>Score:</td></tr>';
for($i=0;$i<count($sum);$i++){
echo "<tr><td>{$sum[$i][0]}</td><td>{$sum[$i][1]}</td><td>{$sum[$i][2]}</td></tr>";
}
/*foreach($sum as $value){
list($stu_num,$stu_name,$stu_score)=$value;
echo "<tr><td>$stu_num</td><td>$stu_name</td><td>$stu_score</td></tr>";
}*/
echo '</table>';
echo '</div>';
} ?>