根据列值分隔表的PHP代码

<?php
// 连接数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 查询数据库表
$sql = "SELECT column_name FROM table_name";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // 输出每一行数据
    while($row = $result->fetch_assoc()) {
        // 使用指定的分隔符拆分列值
        $column_values = explode(",", $row["column_name"]);
        
        // 对拆分后的值进行处理或输出
        foreach($column_values as $value) {
            // 处理或输出每个值
            echo $value;
        }
    }
} else {
    echo "没有结果";
}

// 关闭数据库连接
$conn->close();
?>