json_decode giving null on a valid json

Question

I have this text in my $result

{"meta":{"code":400,"message":"Bad Request"},"error":"userId is required.","extras":null}

But when I do

$json_result = json_decode($result, true);
print_r($json_result);

It gives me null. I have validated this text everywhere and it says that it is a valid json.

EDIT

This is my code

<?php

$data = "&userId=";
$data_string = $data;
$url = 'http://apptellect.cloudapp.net/binance/api/v1/get_user_assets/';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
echo $result = curl_exec($ch);
echo '<hr>';
curl_close($ch);
$json_result = json_decode($result, true);
echo json_last_error_msg();
echo '<hr>';
//$json_result = json_decode( preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $result), true );
print_r($json_result);
?>

What does [json_last_error_msg](http://php.net/json_last_error_msg) tell you? — user3942918, Nov 13 '18 at 11:08
Works for me on pretty much all PHP versions: https://3v4l.org/KNUdP perhaps you have some non-printing characters in there? — Nick, Nov 13 '18 at 11:09
4 = "JSON_ERROR_SYNTAX" - http://php.net/manual/en/function.json-last-error.php. Show us how you're setting `$result`. — Mitya, Nov 13 '18 at 11:11
@Ali : It's works perfectly please check output here https://paiza.io/projects/E1XhDKs3CUEY7ab1L4O_8Q#&togetherjs=8Agn9OEgzN — Abhijit, Nov 13 '18 at 11:13
Possible duplicates of:- [json_decode returns JSON_ERROR_SYNTAX but online formatter says the JSON is OK](https://stackoverflow.com/questions/17219916/json-decode-returns-json-error-syntax-but-online-formatter-says-the-json-is-ok) — Alive to die - Anant, Nov 13 '18 at 11:56

Abhijit · Answer 1 · 2018-11-13T12:52:23.190

I have solved this issue please check this below code

<?php
// Your code here!
$data = "&userId=";
$data_string = $data;
$url = 'http://apptellect.cloudapp.net/binance/api/v1/get_user_assets/';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
echo $result = curl_exec($ch);
echo '<hr>';
curl_close($ch);

// This will remove unwanted characters.
// Check http://www.php.net/chr for details
for ($i = 0; $i <= 31; ++$i) { 
    $result = str_replace(chr($i), "", $result); 
}
$result = str_replace(chr(127), "", $result);

// This is the most common part
// Some file begins with 'efbbbf' to mark the beginning of the file. (binary level)
// here we detect it and we remove it, basically it's the first 3 characters 
if (0 === strpos(bin2hex($result), 'efbbbf')) {
   $result = substr($result, 3);
}

$json_result =    json_decode($result, true);

echo json_last_error_msg();
echo '<hr>';
print_r($json_result);

?>

I am sure it's work properly please check

Curl sent json response .it's display proper json but it's have unwanted characters. we have remove unwanted characters binary level.Then pass to json_decode function

Happy Programming

Thanks, AS

would you like to explain to us exactly what you've done in the code to solve it, in case it's not obvious what you have changed, and more importantly _why_ you changed it. — ADyson, Nov 13 '18 at 12:42
@ADyson : Curl sent json response .it's display proper json but it's have unwanted characters. we have remove unwanted characters binary level.Then pass to json_decode function — Abhijit, Nov 13 '18 at 12:48

score -1 · Answer 2 · edited Nov 13 '18 at 12:03

-1

Hi I found that on stackoverflow: here

<?php

function removeBOM($data) {
    if (0 === strpos(bin2hex($data), 'efbbbf')) {
       return substr($data, 3);
    }
    return $data;
}

$data = "&userId=";
$data_string = $data;
$url = 'http://apptellect.cloudapp.net/binance/api/v1/get_user_assets/';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($ch);
$result = removeBOM($result);
echo $result;

curl_close($ch);
$json_result = json_decode(trim($result), false);
echo json_last_error_msg();
//$json_result = json_decode( preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $result), true );
print_r($json_result);
?>

edited Nov 13 '18 at 12:03

Alive to die - Anant

70,531
10
51
98

answered Nov 13 '18 at 11:35

jawbonewalk

162
2
9

found what exactly? Can you explain your code please and how it solves the problem. – ADyson Nov 13 '18 at 11:38
Please also explain the code so that I can understand what removeBOM is doing – Ali Zia Nov 13 '18 at 11:39
jawbonewalk when you found a duplicate link then try to close the question with that link instead of re-answering the question with same code. – Alive to die - Anant Nov 13 '18 at 11:57

score -1 · Answer 3 · answered Nov 13 '18 at 12:23

-1

just you need to add the trim before decoding your code.You will get the result as it is getting some extra data

answered Nov 13 '18 at 12:23

akshika gupta

1
1

json_decode giving null on a valid json

3 Answers3