Question

嗨，我是PHP新手，但我想总结一下自己的金额并将其显示在当前我正在这样做的页面上，但未显示。

 <div class="col-md-4 col-lg-4">
            <div class="panel panel-bordered panel-black">
                <div class="panel-heading">
     <h3 class="panel-title"><?php echo translate('Total Amount ');?></h3>
                 </div>
                <div class="panel-body">
                    <div class="text-center">
                        <h1>
<?php 
 echo $this->db->select('SUM(amount) as Total');
 $getData =  $this->db->get_where('tablename',array('amount = '!=0))->first_row();
 echo $getData->Total; 
 ?>
                        </h1>
                    </div>
                </div>
            </div>
        </div>

Answer 1

尝试

<?php
$data = $this->db->get_where('tablename',array('amount = '=>1))->sum(amount)->result();
foreach($data as $row): 
echo $row['amount'];  //if array output
echo $row->amount; //object output
endforeach;
?>

Answer 2

 <div class="col-md-4 col-lg-4">
            <div class="panel panel-bordered panel-black">
                <div class="panel-heading">
     <h3 class="panel-title"><?php echo translate('Total Amount ');?></h3>
                 </div>
                <div class="panel-body">
                    <div class="text-center">
                        <h1>
<?php 
 echo $this->db->select('SUM(amount) as Total');
 $getData =  $this->db->get_where('tablename',array('amount = '!=0))->first_row();
 echo $getData->Total; 
 ?>
                        </h1>
                    </div>
                </div>
            </div>
        </div>

数据库中的PHP SUM总和

2 个答案: