Question

我试图通过从另一个数据库中获取的ID数组查询mysql数据库来选择多行，但我似乎没有运气，我检索ID然后将它们存储在这样的数组中; $ array = results =＆gt; followerID =＆GT; “1”，“2”。我似乎无法遍历嵌套数组结果，也无法使用它们来搜索数据库并显示返回的所有结果。

更新：

$ ids var_dump：

array(3) {
  [0]=>
  array(1) {
    ["followingID"]=>
    string(1) "3"
  }
  [1]=>
  array(1) {
    ["followingID"]=>
    string(1) "8"
  }
  [2]=>
  array(1) {
    ["followingID"]=>
    string(1) "7"
  }
}

代码：

$user = $_REQUEST['userID'];
$userNID = $_REQUEST['user'];


$check = query("SELECT followingID FROM user_follows WHERE followerID='%s'", $user);

if (count($check['result'])>0) {
    $ids = $check['result'];
    $id_implode = implode( "', '", $ids);

    echo '{"implode":'.$id_implode.'}';

    $get = query("SELECT username, firstname, lastname FROM user_accounts WHERE userID IN ('%s')", $id_implode);
if (!$get['error']) {

    class Emp {
       public $success = "";
       public $result = "";
       public $error = "";
    }
    $e = new Emp();
    $e->success = 1;
    $e->result = $get['result'];
    $e->error = "No problems";

    echo json_encode($e);

    } else {


    class Emp {
       public $success = "";
       public $error = "";
    }
    $e = new Emp();
    $e->success = 0;
    $e->error = "Connection Error";

    echo json_encode($e);
    exit();
    }
}

?>

Answer 1

好的，感谢您的更新，这可以帮助您修复代码：

在设置$ ids变量

后放置此项

$id_holder = array();

foreach($ids as $key=>$value){
    array_push($id_holder,$value['followingID']);
}

$id_holder = implode(',',$id_holder);

然后是你的其余代码。

根据ID From Array列表 - PHP选择Multiple MySql Rows

1 个答案: