所以,我有一个wp mysql db列如下:
`update_number` = int(11) Null:No, default:0
然后我有以下 php:
$RSS_UPDATE = $wpdb->get_results("SELECT update_number FROM $table WHERE sub_id = $post_id");
if ( $RSS_UPDATE )
{
foreach ( $RSS_UPDATE as $RSS_SINGLE )
{
$RSS_ROW_NEW = $RSS_SINGLE + 1;
$wpdb->update($table, array('update_number' => $RSS_ROW_NEW),array( 'sub_id' => $post_id ));
}
}
所以这个想法是,对于sub_id = $post_id
的任何结果,然后得到所有update_number
。(即可以是"0,2,1,4,2,2")
然后,对于每个值,我想将整数值增加 +1 并更新它。
但是,我越来越Object of class stdClass could not be converted to int
.
我做错了什么?
我认为你需要确保$RSS_SINGLE是字符串或整数
var_dump($RSS_SINGLE);退出;
$RSS_UPDATE = $wpdb->get_results("SELECT update_number FROM $table WHERE sub_id = $post_id");
if ( $RSS_UPDATE )
{
foreach ( $RSS_UPDATE as $RSS_SINGLE )
{
$RSS_ROW_NEW = $RSS_SINGLE->update_number + 1;
$wpdb->update($table, array('update_number' => $RSS_ROW_NEW),array( 'sub_id' => $post_id ));
}
}