从 Android HttpClient 调用时出现 PHP 脚本错误

Question

我遇到了一个问题，该脚本在从我的 Android 应用程序调用时没有返回它应该返回的内容。

安卓端

int pur_user = 3;
URL url = new URL("http://www.example.com/conf/includes/purchase.php");
String result = "";
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url.toString());
ArrayList<NameValuePair> pairs = new ArrayList<NameValuePair>();
JSONObject jsonObject = new JSONObject();
jsonObject.put("PUR_sku", SKU);
jsonObject.put("PUR_user", pur_user);
pairs.add(new BasicNameValuePair("data", jsonObject.toString()));
httpPost.setEntity(new UrlEncodedFormEntity(pairs,HTTP.UTF_8));
HttpResponse response = httpClient.execute(httpPost);           
InputStream is = response.getEntity().getContent();        
result = convertInputStreamToString(is);
Log.d("SEND", "Response of Send Result : " + result);

我尝试了 3 种不同的方式连接到我的 Web 服务器，结果总是没问题，所以我猜问题出在 PHP 脚本上。

PHP端

<? 
$auth=0;
include('./connexion.php');
//$data = file_get_contents('php://input');
//$json = json_decode($data,true);
$json = json_decode($this->input->post('data'), true);
if (strip_tags($json['PUR_sku'])=="singleconf" || strip_tags($json['PUR_sku'])=="fiveconf" || strip_tags($json['PUR_sku'])=="tenconf"){
$addcredits = 0;
if (strip_tags($json['PUR_sku'])=="singleconf"){$addcredits = 1;}
if (strip_tags($json['PUR_sku'])=="fiveconf"){$addcredits = 5;}
if (strip_tags($json['PUR_sku'])=="tenconf"){$addcredits = 10;}
if ($addcredits>0){
    $S_user = mysqli_query($C,"SELECT USE_id, USE_maxcredits FROM CONF_users WHERE USE_id = '".strip_tags($json['PUR_user'])."' LIMIT 1");  
    if (mysqli_num_rows($S_user)==1){
        $DT_user = mysqli_fetch_assoc($S_user);
        $newcredits = $DT_user['USE_maxcredits'] + $addcredits;
        $U_user = mysqli_query($C,"UPDATE CONF_users SET USE_maxcredits = '".$newcredits."' WHERE USE_id = '".$DT_user['USE_id']."' LIMIT 1"); 
        $_SESSION['CO_maxcredits'] = $newcredits;
        }
    }
}
echo "Retour ".print_r($json)." et ".$json['PUR_sku']." et ".$json['PUR_user'];
?>

在 logcat 中，我得到“发送结果的响应：”和空字符串... 我尝试调试，删除除最后一个（回显）之外的所有行，我在 logcat 中得到了正确的响应。 似乎问题出在“include('./connexion.php')”行，但我知道字符串文件名没问题，因为我在另一个脚本中使用了完全相同的文件名。

知道我做错了什么吗？？

Answer 1

问题在于您的echo "Retour ".print_r($json)." et ".$json['PUR_sku']." et ".$json['PUR_user']; 语句。这里 print_r 返回 bool ( true ) 并且您的代码意味着将其转换为字符串。

这是解决方案。

$auth=0;
include('./connexion.php');
//$data = file_get_contents('php://input');
//$json = json_decode($data,true);
$json = json_decode($this->input->post('data'));
if (strip_tags($json['PUR_sku'])=="singleconf" || strip_tags($json['PUR_sku'])=="fiveconf" || strip_tags($json['PUR_sku'])=="tenconf"){
$addcredits = 0;
if (strip_tags($json['PUR_sku'])=="singleconf"){$addcredits = 1;}
if (strip_tags($json['PUR_sku'])=="fiveconf"){$addcredits = 5;}
if (strip_tags($json['PUR_sku'])=="tenconf"){$addcredits = 10;}
if ($addcredits>0){
    $S_user = mysqli_query($C,"SELECT USE_id, USE_maxcredits FROM CONF_users WHERE USE_id = '".strip_tags($json['PUR_user'])."' LIMIT 1");  
    if (mysqli_num_rows($S_user)==1){
        $DT_user = mysqli_fetch_assoc($S_user);
        $newcredits = $DT_user['USE_maxcredits'] + $addcredits;
        $U_user = mysqli_query($C,"UPDATE CONF_users SET USE_maxcredits = '".$newcredits."' WHERE USE_id = '".$DT_user['USE_id']."' LIMIT 1"); 
        $_SESSION['CO_maxcredits'] = $newcredits;
        }
    }
}
echo "Retour ".json_encode($json)." et ".$json['PUR_sku']." et ".$json['PUR_user'];