I have the following code that converts json into an array:
$str = file_get_contents('http://localhost/data.json');
$decodedstr = html_entity_decode($str);
$jarray = json_decode($decodedstr, true);
echo "<pre>";
print_r($jarray);
echo "</pre>";
but my $jarray keeps returning null... I dont know why this is happening.. i have already validated my json in this question:
validated json question could anyone tell me what i am doing wrong? or what is happening. Thanks in advance.
when i echo my $str i get the following:
You are passing to json_decode a string that is not valid JSON, this is the reason NULL is returned.
As I see from comments inspecting the error code generated gives 4 that corresponds to the constant JSON_ERROR_SYNTAX that just means the JSON string has a Syntax Error.
(See http://php.net/manual/en/function.json-last-error.php)
You should inspect (echo) what you get from
$str = file_get_contents('http://localhost/data.json');
(You may edit your answer and post it - or a portion of it)
For sure it is not valid JSON; the problem lies there: in data.json.
Then as you fix things and get from data.json what is expected I would ensure you really need to use html_entity_decode on the fetched data.
It would be "weird" to have html encoded JSON data.
UPDATE
Looking at what you get from data.json it seem the JSON data contains actually HTML entities (as I see the presence of s)
This is actually weird, the right thing to do would be to fix how data.json is generated ensuring non-html-encoded JSON data is returned, charset is UTF-8 and the response content type is Content-Type: application/json.
We can't deepen this here as I don't know where does data.json come from or the code that generates it. Eventually you may post another answer.
So here is a quick fix provided that the right approach would be what I just suggested above.
As you decode html entities, non breaking spaces turns into 2 byte UTF-8 characters (byte values 196, 160) that are not valid for JSON encoded data.
The idea is to remove these characters; your code becomes:
$str = file_get_contents('http://localhost/data.json');
$decodedstr = html_entity_decode($str);
// the character sequence for decoded HTML
$nbsp = html_entity_decode( " " );
// remove every occurrence of the character sequence
$decodedstr = str_replace( $nbsp, "", $decodedstr );
$jarray = json_decode($decodedstr, true);
from php manual
http://php.net/manual/en/function.json-decode.php
Return:
... NULL is returned if the json cannot be decoded or if the encoded data is deeper than the recursion limit
So, surely the JSON string passed to json_decode() is not valid:
maybe because of html_entity_decode
Related
I need to use a customer's API for loading JSON which only contains something like:
{"html" : "foo"}
The API is being used from other services so I'm pretty sure it's valid.
However, when trying to decode it using json_decode i'm always getting an empty string which means it's not valid. I found out i need to "fix" the JSON-String by replacing:
$json = str_replace("\\>", "\\\\>", $json); // \> = invalid json
It works mainly on each request but not on certain others but it's very tricky to debug and i can't imagine that replacing is the proper method.
How would i do it the easy way for converting the json string into a valid one?
thanks
Ok i could find out what's wrong:
The HTML contains backslashes in the closing tags, for example <br\>
You need to replace them like this:
$json = str_replace("\\>", "\\\\>", $json);
and json_decode will work
I have fetched some data from a url request using JSON with the following code:
$url = 'https://recruit.zoho.com/ats/private/xml/JobOpenings/getRecords?authtoken=$at&scope=recruitapi';
$request = new WP_Http;
$result = $request->request($url, $data = array());
$input = json_encode($result, true);
var_dump($input);
This code worked absolutely fine, except the data coming out looked really weird, such as:
"content-encoding":"gzip","vary":"Accept-Encoding","strict-transport-security":"max-age=15768000"},"body":"\u003C?xml version=\"1.0\" encoding=\"UTF-8\" ?\u003E\n\u003Cresponse uri=\"\/ats\/private\/xml\/JobOpenings\/getRecords\"\u003E\u003Cresult\u003E\u003CJobOpenings\u003E\u003Crow no=\"1\"\u003E\u003CFL val=\"JOBOPENINGID\"\u003E\u003C![CDATA[213748000001263043]]\u003E\u003C\/FL\u003E\u003CFL val=\"Published in website\"\u003E\u003C![CDATA[false]]\u003E\u003C\/FL\u003E\u003CFL val=\"Modified by\"\u003E\u003C![CDATA
After some research, I realize that part of the problem most likely is the fact that there are æ, ø, and å in the data I'm requesting. Others have solved the problem this way:
$input = json_encode(utf8_decode($result), true);
However this gives me this error:
Warning: utf8_decode() expects parameter 1 to be string, array given in
I know the array is not a string, but how else do I deal with this? It seems to have worked for others, and I cant figure out why.
Thanks.
Edit:
I noticed this in the beginning of the printed data.
string(31486) "{"headers":{"server":"ZGS","date":"Wed, 12 Aug 2015 13:59:32 GMT","content-type":"text\/xml;charset=utf-8"
Does that mean it is already UTF-8 and I'm totally off?
What you receive in $result is an utf-8 string that seems to represent an url of some sort. Anyhow, json_encode will escape any unicode character to \u008E strings.
If you don't want to escape utf-8 character, this question is relevent to you : Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
Everything seems to work fine from what I see. Although, the string you have provided us seem to be troncated but I guess this is an error on your part.
Can anyone shed any light on why
http://jsonlint.com/
and
http://jsonformatter.curiousconcept.com/
is giving invalid json from URL 1 below but not URL 2? They are both the same JSON generating code. The only difference is one is HTTPs and one is HTTP.
https://www.discussthemarket.com/dev/
JSON.parse: unexpected character at line 1 column 1 of the JSON data
and also
http://www.lambwatch.co.uk/json.htm
Valid JSON
Both have the same JSON generating code behind them, exact same code, but when I put the URLs into
http://jsonlint.com/
for validation, the https site is coming back with a parse error!?
Also, when I do
$json = json_decode(file_get_contents("https://www.discussthemarket.com/dev/"));
$json is NULL
However
$json = json_decode(file_get_contents("http://www.lambwatch.co.uk/json.htm"));
$json is the object as you'd expect
Can anyone shed any light on this?
Your problem is that the HTTPS server is adding a UTF8 BOM character to the start of the output, therefore invalidating the expected JSON response. Without seeing the code, it's unclear why, but it's likely a header issue.
If you're unable to solve it server-side, you can always simply remove it at the other end. Here is an example
<?php
$response = file_get_contents('https://www.discussthemarket.com/dev/');
$json = remove_utf8_bom($response);
var_dump(json_decode($json));
function remove_utf8_bom($text) {
$bom = pack('H*', 'EFBBBF');
$text = preg_replace("/^$bom/", '', $text);
return $text;
}
I'm trying to encode a response array as json and it has worked until now.
$response = array();
$response['icons']= $icons_arr;
$response['message']= $msg;
echo json_encode( $response );
The result is
Array{"icons":["{\r\n\t\t\t\t\t\"icon_web_id\": \t\t\t\"0 ...
Javascript throws an error as it can't parse the "Array" word. I suspect the JQuery function $.parseJSON() expects a {} or a [].
What am I doing wrong here? Why won't json_encode() function properly?
Bonus question: what is causing all these \t\t\t\t's to occur?
Some other piece of code is producing the 'Array' output before the json string is output, you can prove this by changing the output line to
echo "json_encode returned ".json_encode( $response );
Check your code for other echo statements.
Regarding your Bonus question:
The \t is a tab in PHP. Your code may contain tabs instead of spaces somewhere, which could be rendered as multiple \t's.
I am running a Debian box with PHP v5.2.17. I am trying to get around the cross-domain issue with an XML file and am using this got to fetch any xml and return json:
<?php
header('content-type: application/json; charset=utf-8');
if( strlen($_GET["feed"]) >= 13 ) {
$xml = file_get_contents(urldecode($_GET["feed"]));
if($xml) {
$data = #simplexml_load_string($xml, "SimpleXMLElement", LIBXML_NOCDATA);
$json = json_encode($data);
echo isset($_GET["callback"]) ? "{$_GET[’callback’]}($json)" : $json;
}
}
?>
The problem is, its not returning valid json to jquery.. The start character is "(" and the end is ")" where jquery wants "[" as the start and "]" as the end. I've taken the output and used several online validation tools to check it..
Is there a way I can change these characters prior to sending back or pass json_encode options?
You could change json_encode($data) to json_encode(array($data)) if it expects an array (like you're saying):
$json = json_encode(array($data));
EDIT: Also, I believe the SimpleXml call will result in a bunch of SimpleXmlElements, perhaps json_encode then thinks it should be objects, instead of arrays? Perhaps casting to an array will yield the correct results.
You cannot json_encode() SimpleXMLElements (that's the type that is returned by simplexml_load_string(). You have to convert the data from the XML file into some native PHP type (most likely an array).
SORRY that's wrong. json_encode() can in fact encode SimpleXMLElements (at least on my PHP version 5.3.4). So if your client-side code expects an array you must wrap your $data in an array:
$json = json_encode(array($data));
We can use json_encode() function most probably on array. so you first take XML content into PHP array and then apply json_encode().I think this will solve your problem..
It seems that you are sending an empty callback parameter or something, but the callback parameter in jQuery must look exactly like this: callback=?