Emoji 转 JSON 编码,发布到 Web 服务器
请帮助我解决发布 JSON 解码表情符号字符时遇到的问题。 我有一个 UITextView,这个文本视图可能有表情符号字符。我将数据发布到 Web 服务器,UITextView.text 以 JSON 形式呈现,问题是当文本有表情符号时,我无法获取数据。我所做的是:
$postData = file_get_contents("php://input") to get the data.
然后我使用
$post = json_decode($postData,true);
解码数据并拥有一个关联数组并将数据插入数据库中。
这是我将数据插入数据库时的代码片段。
$postData = file_get_contents("php://input");
//$postData = '{"body":"characters here ","subject":"subject here","username":"janus","from_id":"185","to_id":"62"}';
$post = json_decode($postData,true);
$data=array(
'user_id_from'=>mysql_real_escape_string($post['from_id']),
'user_id_to'=>mysql_real_escape_string($post['to_id']),
'subject'=>mysql_real_escape_string($post['subject']),
'message'=>mysql_real_escape_string($post['body']));
$messages_obj->insert($data);
没有找到表情符号字符,它工作正常。没问题。问题是当找到表情符号字符时,$post 中的数据(解码数据)为空。
我尝试使用虚拟数据(代码片段中的第 2 行)
//$postData = '{"body":"characters here ","subject":"subject here","username":"janus","from_id":"185","to_id":"62"}';
,并成功将表情符号字符插入数据库中。我不知道为什么,但当数据来自设备时它的工作方式不同 ($postData = file_get_contents("php://input"))
这就是我在客户端中编码和发布数据的方式。
NSMutableDictionary *messageDetails = [[NSMutableDictionary alloc] init];
[messageDetails setObject:[loginItems objectForKey:@"user_id"] forKey:@"from_id"];
[messageDetails setObject:recipientID forKey:@"to_id"];
[messageDetails setObject:@"subject here" forKey:@"subject"];
[messageDetails setObject:newMessageField.text forKey:@"body"];
[messageDetails setObject:[loginItems objectForKey:@"username"] forKey:@"username"];
NSString *strPostData = [messageDetails JSONRepresentation];
[messageDetails release];
NSData *postData = [NSData dataWithBytes:[strPostData UTF8String] length:[strPostData length]];
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setHTTPBody:postData];
Please help me with my problem in posting a JSON decoded emoji character.
I have a UITextView, this text view may have a emoji character. I am posting the data to a web server with the UITextView.text presented as JSON, the problem is when the text has a an emoji, I am not able to get the data. What I do is:
$postData = file_get_contents("php://input") to get the data.
then I use
$post = json_decode($postData,true);
to decode the data and have a assoc array and insert the data in database.
here is a code snippet when I insert my data into database.
$postData = file_get_contents("php://input");
//$postData = '{"body":"characters here ","subject":"subject here","username":"janus","from_id":"185","to_id":"62"}';
$post = json_decode($postData,true);
$data=array(
'user_id_from'=>mysql_real_escape_string($post['from_id']),
'user_id_to'=>mysql_real_escape_string($post['to_id']),
'subject'=>mysql_real_escape_string($post['subject']),
'message'=>mysql_real_escape_string($post['body']));
$messages_obj->insert($data);
Without an emoji character found, it works fine. no problem. the problem is when an emoji character found, the data in $post (decoded data) is null.
I tried to use dummy data (line 2 in code snippet)
//$postData = '{"body":"characters here ","subject":"subject here","username":"janus","from_id":"185","to_id":"62"}';
and I succesfully inserted the emoji characters in database. I dont know why but It dont work the same when the data is from the device ($postData = file_get_contents("php://input"))
This is how I encode and post my data in client.
NSMutableDictionary *messageDetails = [[NSMutableDictionary alloc] init];
[messageDetails setObject:[loginItems objectForKey:@"user_id"] forKey:@"from_id"];
[messageDetails setObject:recipientID forKey:@"to_id"];
[messageDetails setObject:@"subject here" forKey:@"subject"];
[messageDetails setObject:newMessageField.text forKey:@"body"];
[messageDetails setObject:[loginItems objectForKey:@"username"] forKey:@"username"];
NSString *strPostData = [messageDetails JSONRepresentation];
[messageDetails release];
NSData *postData = [NSData dataWithBytes:[strPostData UTF8String] length:[strPostData length]];
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setHTTPBody:postData];
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一旦数据发送到您的 php 脚本,您需要将其转换为多字节字符串:
您可以使用此函数:
编辑:数据可能是 application/x-www-form-urlencoded 类型,并且该函数正确转换了它。
Once the data is sent to your php script you need to convert it to a multibyte string:
You can use this function:
Edit: The data was probably of type application/x-www-form-urlencoded for us and that function converted it correctly.
表情符号字符很可能以 UNICODE 进行转码,因此仅以 UTF-8 格式发送、接收和管理数据就足够了。
当接收这个
(我认为这是一个真实的 URL)时,请确保您的 php 脚本发送一个 Content-Encoding 标头(如下所示,选择适合您的 MIME 类型)
emoji characters are most likely transcoded in UNICODE, so it should be sufficient to just send, receive and manage your data in UTF-8.
When receiving with this
(I suppose that is a real URL), make sure your php script sends an Content-Encoding header (like the following, choose a MIME-type that suits you)
请按照以下步骤操作:
Please follow following steps: