javascript - 如何将 PHP 数组传递给 JavaScript 变量？

Question

我有以下 JavaScript 将参数发送到 PHP 文件:

function getOutput()
{
$.ajax({
url:'myPHPFile.php',
data:{APIKey:$APIKey,Password:$APIPass,Alias:$Alias,DataCenter:$DataCenter},
type:'POST',
complete: function (response) {
$('#output').html(response.responseText);
},
error: function ()
{
$('#output').html('Bummer: there was an error!');
}
});
return response.responseText;
}`

这会将以下 HTML 更改为 PHP 文件的输出:

<a href="#" onclick="return getOutput();"> test </a>

这是 PHP

<?php
//  echo nl2br("\nIntializing api.php \n");
// DATA SECTION
$APIKey = $_POST["APIKey"];
$APIPass = $_POST["Password"];
$AccountAlias = $_POST["Alias"];
$dataCenter = $_POST["DataCenter"];

$data = array(
  "APIKey" => $APIKey,
  "Password" => $APIPass,   
);

$url_send = 'https://api.ctl.io/REST/Auth/Logon/';
$json_data = json_encode($data);

function sendPostData($url, $post, $cook = null){
//  echo "Beginning sendPostData($url, $post, $cook)";

$ch = curl_init($url);
$headers= array('Accept: application/json','Content-Type: application/json'); 
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");  
curl_setopt($ch, CURLOPT_POSTFIELDS,$post);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

if (!empty($cook))
  {
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/json','Content-Type: application/json','Cookie:'.$cook));     
  }

$result = curl_exec($ch);
curl_close($ch);  // Seems like good practice
return $result; 
};
$myresult = sendPostData($url_send, $json_data);
//  print_r ($myresult);
$decodedresult = json_decode($myresult);
// print_r ($decodedresult);
'/reply-(.*?)-private/';
preg_match_all('/Tier3(.*?)path=/', $myresult, $matches); 
$cookies = array(); 

foreach($matches[0] as $item) 
        { 
          parse_str($item, $cookie); 
          $cookies = array_merge($cookies, $cookie); 
        }
$prefix = 'Tier3.API.Cookie=';
$cookie = implode(" ",$matches[0]);

// Call the customer server list
$data = array(
  'AccountAlias' => $AccountAlias,
  'Location' => $dataCenter
);
$data_url =     'https://api.ctl.io/REST/Server/GetAllServersForAccountHierarchy/';
$data_string = json_encode($data);

$dataResult = sendPostData($data_url,$data_string, $cookie);
print_r($dataResult);
return $dataResult;

`

如何将 $dataResult PHP 数组放入 JavaScript 变量中以便我可以解析它？这是来自 API 的大型 JSON 响应。

谢谢。

Answer 1

Ajax 调用(通常)是异步的，这意味着返回response.responseText;将立即执行，甚至应该引发与response未定义相关的错误。

您将在 ajax 调用的 complete 事件中收到响应，并且在其中您应该继续执行脚本。 jQuery 将自动解析 JSON，response 将是结果对象。

另一方面，PHP 脚本应该只打印 json_encode() 的结果，而没有其他内容，以便响应是有效的 JSON。