用鍵值創建一個空數組

Question

我正在嘗試在php中創建一個數組，該數組將通過ajax調用在javascript中解析為json。 我注意到用$empty = array()實例化的數組的第一個索引返回為{"0":[{..values here..}], "success":true} 。 理想情況下，我將使用reply.data和reply.success訪問它。 答復。 成功有效，但我似乎找不到如何創建一個沒有0作為第一個索引的數組。

我的php旁碼：

    $result = array();
    $record = array();
    $resp = mysqli_query($this->conn, $sql);
    if(mysqli_num_rows($resp)>0){
        while($row = mysqli_fetch_assoc($resp)){
            $record = array();
            foreach($row as $key => $val){
                $record[$key] = $val;
            }
            array_push($result,$record);
            unset($record);
        }
        //return json_encode($result, JSON_PRETTY_PRINT);
        return $result;

當我在javascript中訪問它時

 success: function(data){
        data = JSON.parse(data);
        if(data.success==true){  //able to access success with "data.success"
            //there is an empty
            $scope.conn = "connecting to room";
            console.log(data.data.room_id);  //does not work because index is 0
            console.log(JSON.stringify(data));

它返回什么

{"0":[{"room_id":"20","host_id":"","resp_id":"","offer":"","answer":"","status":"0"}],"success":true}

Answer 1

用這個，

$result = array();
$resp = mysqli_query($this->conn, $sql);
if(mysqli_num_rows($resp)>0){
    while($row = mysqli_fetch_assoc($resp)){
        foreach($row as $key => $val){
            $result["data"][$key] = $val
        }
    }
}
//return json_encode($result, JSON_PRETTY_PRINT);
return $result;

Answer 2

我認為您寧可將流程復雜化

foreach循環似乎是不必要的，因為您只需將$ row加載到數組中即可。

public function xxx()
{
    $result = array();
    $resp = mysqli_query($this->conn, $sql);
    if(mysqli_num_rows($resp)>0) {
        $result['success'] = 'true';

        while($row = mysqli_fetch_assoc($resp)){
            $result['data'][] = $row;
        }

    } else {
        $result['success'] = 'false';
    }
    return $result;
}

// instantiate object 
//$obj = new Whatever the class is called()
echo json_encode($obj->xxx());