转换对象数组

Question

我正在尝试将我的邮政编码和城镇转换为 JSON 对象数组，但我想我做的不对，我需要它来实现我的自动完成功能。

这是我的代码：

 $sql = "SELECT * FROM uk_postcodes";
    $result = mysqli_query($connection, $sql) or die("Error " . mysqli_error($connection));

    $dname_list = array();
    while($row = mysqli_fetch_array($result))
    {
      //  [ { label: "Choice1", value: "value1" }, { label: "Choice2", value: "value2" } ]

       $dname_list[] = "{label:".$row['postcode'].","."value:".$row['town']."}";
    }
    header('Content-Type: application/json');
    echo json_encode($dname_list);

Answer 1

您需要将对象中的每个条目都设为一个数组。这应该有效：

while($row=mysqli_fetch_array($result)){
     $matches[] = array(
                'label'=> $row["postcode"],
                'value'=> $row["town"],
                    );
}

Answer 2

不要尝试用字符串插入 json。你完全可以依靠 json_encode.

我会这样做

 $sql = "SELECT * FROM uk_postcodes";
 $result = mysqli_query($connection, $sql) or die("Error " . mysqli_error($connection));

 $dname_list = array();
 while($row = mysqli_fetch_array($result))
 {
    $dname_list[] = array(
       "label" => $row['postcode'],
       "value" => $row['town']
    );
 }
 header('Content-Type: application/json');
 echo json_encode($dname_list);

转换对象数组

Convert Array of Objects

javascript

php

jquery

jquery-autocomplete