thinkphp与javascript数据交互

$income = Db::name(‘table‘)->select();
$this->assign(‘income‘,$income);

var arr = {:json_encode($income)};
    var total = new Array();
    var date = new Array();
    
    for(i=0;i<arr.length;i++){
        total.push(arr[i].total);
        date.push(arr[i].months);
    }

{foreach $income as $v}
        <td class="total">{$v.total}</td>
    {/foreach}

<script>
        var arr = new Array();
        $(".total").each(function(){
            arr.push($(this).text());
        });
        console.log(arr);
    </script>