Pemprosesan borang PHP: statistik dan analisis data borang

<form action="process.php" method="post">
    <label for="name">姓名：</label>
    <input type="text" name="name" id="name" required>
    
    <label for="gender">性别：</label>
    <input type="radio" name="gender" value="male" checked>男
    <input type="radio" name="gender" value="female">女
    
    <label for="age">年龄：</label>
    <input type="number" name="age" id="age" min="1" max="100" required>
    
    <label for="hobbies">兴趣爱好：</label>
    <input type="checkbox" name="hobbies[]" value="reading">阅读
    <input type="checkbox" name="hobbies[]" value="music">音乐
    <input type="checkbox" name="hobbies[]" value="sports">运动
    
    <button type="submit">提交</button>
</form>

<?php
// 判断表单是否提交
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // 获取表单数据
    $name = $_POST["name"];
    $gender = $_POST["gender"];
    $age = $_POST["age"];
    $hobbies = $_POST["hobbies"];
    
    // 统计人数
    $count = 1;
    
    // 统计男女比例
    $maleCount = 0;
    $femaleCount = 0;
    
    if ($gender == "male") {
        $maleCount++;
    } else {
        $femaleCount++;
    }
    
    // 统计年龄分布
    if ($age >= 20 && $age <= 30) {
        $ageGroup = "20-30";
    } elseif ($age >= 31 && $age <= 40) {
        $ageGroup = "31-40";
    } elseif ($age >= 41 && $age <= 50) {
        $ageGroup = "41-50";
    } else {
        $ageGroup = "其他";
    }
    
    // 统计兴趣爱好
    $readingCount = 0;
    $musicCount = 0;
    $sportsCount = 0;
    
    if (in_array("reading", $hobbies)) {
        $readingCount++;
    }
    
    if (in_array("music", $hobbies)) {
        $musicCount++;
    }
    
    if (in_array("sports", $hobbies)) {
        $sportsCount++;
    }
    
    // 输出统计结果
    echo "总人数: " . $count . "<br>";
    echo "男性人数: " . $maleCount . "<br>";
    echo "女性人数: " . $femaleCount . "<br>";
    echo "年龄分布: " . $ageGroup . "<br>";
    echo "阅读人数: " . $readingCount . "<br>";
    echo "音乐人数: " . $musicCount . "<br>";
    echo "运动人数: " . $sportsCount . "<br>";
}
?>

<!-- 引入Google Charts库 -->
<script src="https://www.gstatic.com/charts/loader.js"></script>
<script>
google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawChart);

function drawChart() {
    // 创建数据表
    var data = new google.visualization.DataTable();
    data.addColumn('string', '兴趣爱好');
    data.addColumn('number', '人数');
    data.addRows([
        ['阅读', <?php echo $readingCount; ?>],
        ['音乐', <?php echo $musicCount; ?>],
        ['运动', <?php echo $sportsCount; ?>]
    ]);

    // 设置图表选项
    var options = {'title':'兴趣爱好统计',
                   'width':400,
                   'height':300};

    // 绘制图表
    var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
    chart.draw(data, options);
}
</script>

<!-- 展示统计结果 -->
<div id="chart_div"></div>