意外標記在位置39

我有一個字典的web應用程序的PHP的API，意外標記在位置39

$outp = ""; 

while($rs = $result->fetch_array(MYSQLI_ASSOC)) { 
    if ($outp != "") {$outp .= ",";} 
    $outp .= '{"WORD":"' . $rs["word"] . '",'; 
    $outp .= '"MEANING":"' . $rs["definition"]  . '"}'; 
} 
$outp ='{"records":['.$outp.']}'; 
$conn->close(); 

echo($outp); 

} 
else 
{ 


} 
?>

並在angularJS側的解析函數如下：

$scope.counter = function() { 
        console.log(JSON.stringify(response)); 

    if($scope.name) { 
     $http.get("http://localhost/dictionary/API/search.php?qr="+$scope.name) 
      .then(function (response) { 
       console.log(JSON.stringify(response.records)); 
      if(response.data.records=="") { 
       queryRes = response.data.records ; 
       $scope.word = ""; 
       $scope.meaning = "" 
      } else { 

       queryRes = response.data.records ; 
       $scope.word = queryRes[0].WORD; 
       $scope.meaning = queryRes[0].MEANING; 
      } 

    }); 

    } 

}

沒有php api返回單元素數組JSON時出錯如下

{"records":[{"WORD":"Net","MEANING":"വല"}]}

但是當php返回數組發言：喜歡，

{"records":[{"WORD": "End","MEANING": "അറുതി 
"},{"WORD": "End","MEANING": "അവസാനം 
"},{"WORD": "End","MEANING": "അതിര്‌ 
"},{"WORD": "End","MEANING": "സീമ 
"},{"WORD": "End","MEANING": "പരിസമാപ്‌തി 
"},{"WORD": "End","MEANING": "അവസാനഘട്ടം 
"},{"WORD": "End","MEANING": "മരണം 
"}]}

得到錯誤這樣

Unexpected token in JSON at position 39 at JSON.parse (<anonymous>)

我認爲JSON對象操作是有一些問題。

來源

2017-03-17 NIKHIL C M

您可以print_out您在js中收到的字符串，並將其粘貼到此處http://json.parser.online.fr/以檢查問題出在哪裏。 – user3711105

我檢查過它，發現在PHP端有一些JSON操作的問題。現在通過使用ryan的答案解決。 –

不要通過字符串連接構建JSON;使用json_encode。

$records = []; 

while($rs = $result->fetch_array(MYSQLI_ASSOC)) { 
    $records[] = [ 
     'WORD' => $rs["word"], 
     'MEANING' => $rs["definition"], 
    ]; 
} 
$conn->close(); 

echo json_encode(['records' => $records]);

來源

2017-03-17 06:32:19 Ryan

謝謝！這是問題！ –

回答

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