The received json cannot be parsed. it must be parsed using php. how can this problem be solved?

The received json file cannot be parsed. you must use php to parse function & nbsp; sendPost ($ url, $ postData) {& nbsp; $ postdata & nbsp; http_build_query ($ postData); & nbsp; $ options & nbsp; array (& nbsp; http & nbsp; & gt; & the received json cannot be parsed, must be parsed using php

Function sendPost ($ url, $ postData ){
$ Postdata = http_build_query ($ postData );
$ Options = array (
'Http' => array (
'Method' => 'post ',
'Header' => 'Content-type: application/x-www-form-urlencoded ',
'Content' => $ postdata,
'Timeout' => 15*60 // timeout (unit: s)
)
);
$ Context = stream_context_create ($ options );
$ Result = file_get_contents ($ url, false, $ context );

Return $ result;
}


$ Url = "http://chepiao.sinaapp.com/api.php? Act = remain ";
$ Data = array (
"Date" = & gt; "20131220 ",
"StartStation" => "Beijing ",
"ArriveStation" => "Tianjin"
);
$ Result = sendPost ($ url, $ data );
$ Obj = json_decode ($ result );
$ Result is the returned data, that is, the data cannot be parsed, and json_decode ($ result) is used; the parsed result is NULL.

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------ Solution --------------------

This post was last edited by xuzuning at 19:19:36, January 17 ,.

Even csdn cannot accept this character set disorder
UTF-8 environment

------ Solution --------------------
Amazing
Echo json_last_error ();
The result is 4, indicating that the format is incorrect.
So I threw the returned content at http://jsonlint.com/detection, and reported an error, which is a line change problem.
Print_r (json_decode (str_replace ("\ n", "", $ result )));
The result is fine.