mysqli fetch_object在結果集數組的第一個元素中返回非對象

Question

我有一個特殊的mysqli查詢，返回結果集數組中第0個位置的空元素。這個空非對象元件似乎當我在結果設置爲顯示於屏幕

$projAreas[] = array(); 
$projectID = $_GET['projectID']; 

$sql = "SELECT * 
     FROM `areas` , `project_area_junc` 
     WHERE `areas`.`areaID` = `project_area_junc`.`areaID` 
     AND `project_area_junc`.`projectID` = $projectID"; 

$results = $conn->query($sql); 
while($row = $results->fetch_object()) { 
    $projAreas[] = $row; 
    } 

結果嘗試循環引起問題在位置0給出不期望的數組元素） 即當我的print_r（$ projAreas） 我得到這個：

Array 
(
    [0] => Array 
     (
     ) 

    [1] => stdClass Object 
     (
      [areaID] => 56 
      [propertyID] => 14 
      [areaName] => Living Room 
      [areaInfo] => lots of windows - colonial style 
      [proj_area_juncID] => 10 
      [projectID] => 4 
     ) 

    [2] => stdClass Object 
     (
      [areaID] => 57 
      [propertyID] => 14 
      [areaName] => Kitchen 
      [areaInfo] => 
      [proj_area_juncID] => 11 
      [projectID] => 4 
     ) 

Answer 1

試試這個

$projAreas= array();

而不是

$projAreas[]= array();

你必須聲明數組$projAreas以及由[]這需要第一個索引0

Answer 2

試試這個初始化....

$projAreas = array(); 
    while($row = $results->fetch_object()) { 
     array_push($projAreas ,$row); 
     } 

    print_r($projAreas);