我有以下代码,$totalDonations应该输出1500。
<?php
$donations = $wpdb->get_results("
SELECT amount
FROM wp_fullstripe_payments
");
?>
<?php $totalDonations = array_sum($donations); ?>
<?php echo $totalDonations; ?>
我从$totalDonations中得到0。
下面是$捐款的var_dump:
array(2) { [0]=> object(stdClass)#2108 (1) { ["amount"]=> string(3) "500" } [1]=> object(stdClass)#2107 (1) { ["amount"]=> string(4) "1000" } }
这个也不行:
<?php echo $donations[0]; ?>
您将获得作为stdClass的结果
试
<?php
$totalDonations;
foreach ($donation as $donations){
totalDonations += $donation->amount;
}
?>
查看此链接:http://www.webmaster-source.com/2009/08/20/php-stdclass-storing-data-object-instead-array/