把JS代码放在PHP while循环中

Question

i have some JS Code for displaying graph data:

series: [{
                name: 'Year 1800',
                data: [107, 31, 635, 203, 2]
            }, {
                name: 'Year 1900',
                data: [133, 156, 947, 408, 6]
            }, {
                name: 'Year 2008',
                data: [973, 914, 4054, 732, 34]
            }]

i need to get the data to display in a while loop in PHP. I have tried this:

<?php
                $sql="SELECT *, COUNT(category) AS my_groupcount from tickets where deleted = '' and DAY(datetime) = '".$day."' and MONTH(datetime) = '".$month."' and YEAR(datetime) = '".$year."' group by category order by datetime ASC ";
                $rs=mysql_query($sql,$conn);
                while($result=mysql_fetch_array($rs))
                {
                    echo "name: 'Cat ".$result["category"]."',";
                    echo "data: [".$result["my_groupcount"]."]";
                    echo "}, {";
                }
                ?>

i need to group the category column in the tickets table and display the graphs for each category but its not working - i think its because in the while loop its ending with }, { but i need it to end with }]

how can i get round this - the amount of category items in the tickets table is changing all the time as users are able to add/delete categories.

Answer 1

<?php
            $sql="SELECT *, COUNT(category) AS my_groupcount from tickets where deleted = '' and DAY(datetime) = '".$day."' and MONTH(datetime) = '".$month."' and YEAR(datetime) = '".$year."' group by category order by datetime ASC ";
            $rs=mysql_query($sql,$conn);
            $first = true;
            echo 'series: [{';
            while($result=mysql_fetch_array($rs))
            {
                if(!$first) {
                    echo "}, {";
                } else {
                    $first = false;
                }
                echo "name: 'Cat ".$result["category"]."',";
                echo "data: [".$result["my_groupcount"]."]";
            }
            echo '}]';
?>