在莫里斯条形图标签字段中显示 Mysql 数据库列

Question

我正在使用莫里斯条形图来显示用户登录系统的次数。我想要动态标签（悬停时）。我正在通过 PHP.

获取数据

<?php
    $conn = mysqli_connect("localhost", "root", "", "database_name");
    $sql = "SELECT account, 
                        (SELECT fullname 
                        from employees as d 
                        WHERE r.emp_id = d.employee_code) as emp_id, 
                        count(username) as total
            From logins as r 
            group by account 
            ORDER BY emp_id ASC 
            LIMIT 10";

    $most_link =mysqli_query($conn,$sql);
    $chart_data = '';
    $most_sold = '';
    
    while($row_most= mysqli_fetch_array($most_link)){
        $most_sold .= "{ accounnt:'".$row_most["account"]."',  employee:'".$row_most["emp_id"]."', total:".$row_most["total"].", }, ";
    }
    $most_sold = substr($most_sold, 0, -2);
?>
<script>
    new Morris.Bar({
        element : 'most',
        data:[<?php echo $most_sold; ?>],
        xkey:'employee',
        ykeys:['total'],
        labels:'account',
        hideHover:'auto',
        barColors:['#F5761A'],
    });
</script>

如果您注意到，标签被硬编码为 'account(the label text words)'，但是，我希望它是动态的（PHP 中的 'account' 属性）。知道怎么做吗？

Answer 1

您没有正确地构建 JSON，通过构建字符串手动做到这一点绝非易事

简单选项

首先更改 sql 以获取具有您希望存在于 JSON

中的名称的列

$sql = "SELECT account, 
                    (SELECT fullname 
                    from employees as d 
                    WHERE r.emp_id = d.employee_code) as employee, 
                    count(username) as total
        From logins as r 
        group by account 
        ORDER BY emp_id ASC 
            LIMIT 10";

$most_sold = '';
$most_arr = [];
$labels = [];

while($row_most= mysqli_fetch_array($most_link)){
    $most_arr[] = $row_most;
    $labels[] = $row_most['account'];
}
$most_sold = json_encode($most_arr);
$json_labels = json_encode($labels);

然后

labels: <?php echo $json_labels; ?>,

Answer 2

我终于找到解决办法了只需获取值并将其存储在变量
变量存储在这里 $account = $row_most["account"];
然后在labels字段中回显
labels: ['<?php echo $account ?>'],得到动态数据

        $conn = mysqli_connect("localhost", "root", "", "database_name");
        $sql = "SELECT account, 
            (SELECT fullname from employees as d WHERE r.emp_id = d.employee_code) as emp_id, count(username) as total
            From logins as r group by account ORDER BY emp_id ASC LIMIT 10";
        $most_link =mysqli_query($conn,$sql);
        $chart_data = '';
        $most_sold = '';
            while($row_most= mysqli_fetch_array($most_link)){
            $most_sold .= "{ account:'".$row_most["account"]."',  employee:'".$row_most["emp_id"]."', total:".$row_most["total"].", }, ";
            $account = $row_most["account"];
            }
        $most_sold = substr($most_sold, 0, -2);
    ?>
    <script>
        new Morris.Bar({
        element : 'most',
        data:[<?php echo $most_sold; ?>],
        xkey:'employee',
        ykeys:['total'],
        labels: ['<?php echo $account ?>'],
        hideHover:'auto',
        barColors:['#F5761A'],
    });
    </script>```

在莫里斯条形图标签字段中显示 Mysql 数据库列

Display Mysql Database Column in Morris Bar Graph labels field

php

html

mysql

graph

morris.js