Question

我一直在尝试在wordpress中编写一个mysql查询，但它似乎不起作用。代码：

foreach ($postList as $curpostid) {
        echo "postID ".$curpostid." + ";
        $sql2 = 'SELECT * FROM wp_mr_rating_item_entry WHERE post_id='.$curpostid;
        $results2 = $GLOBALS['wpdb']->get_results($sql2) or die(mysql_error());
}

$ postList打印为：

Array
(
[0] => 3148
[1] => 3097
[2] => 3048
[3] => 1036
)

这些帖子确实存在，回声显示它们很好。如果我输入$ curpostid的特定值作为查询之一的数组条目。看来查询不接受数组中的变量。我已经尝试将变量设置为int（int）$ curpostid，因为字段类型是bigint但仍然不起作用。任何帮助表示赞赏。

我已设法将输出放在多维数组中，但现在我无法将值放在一个数组中：这是数组：

 Array
(
   [0] => Array
    (
        [0] => stdClass Object
            (
                [rating_item_entry_id] => 1
            )

        [1] => stdClass Object
            (
                [rating_item_entry_id] => 2
            )

        [2] => stdClass Object
            (
                [rating_item_entry_id] => 3
            )

        [3] => stdClass Object
            (
                [rating_item_entry_id] => 4
            )

        [4] => stdClass Object
            (
                [rating_item_entry_id] => 5
            )

        [5] => stdClass Object
            (
                [rating_item_entry_id] => 6
            )

        [6] => stdClass Object
            (
                [rating_item_entry_id] => 7
            )

        [7] => stdClass Object
            (
                [rating_item_entry_id] => 8
            )

    )

[1] => Array
    (
        [0] => stdClass Object
            (
                [rating_item_entry_id] => 10
            )

    )

[2] => Array
    (
        [0] => stdClass Object
            (
                [rating_item_entry_id] => 11
            )

    )

[3] => Array
    (
        [0] => stdClass Object
            (
                [rating_item_entry_id] => 14
            )

    )

)

如何将所有最终的rating_item_entry_id值放在一个数组中？试过以下代码，但我有点困惑，它不起作用。

foreach($results2Array as $result2) {
        foreach($result2 as $res2) {
            echo   $res2['rating_item_entry_id'];
            $ratingentries[] = $res2['rating_item_entry_id'];
        }
    }

Answer 1

试试这个：

foreach ($postList as $curpostid) {

        $sql2 = "SELECT * FROM wp_mr_rating_item_entry WHERE post_id='".$curpostid."'"; //change here
        $results2 = $GLOBALS['wpdb']->get_results($sql2) or die(mysql_error());
}

Wordpress mysql查询没有接受变量

1 个答案: