How to receive JSON POST with PHP

0 votes

I’m trying to receive a JSON POST on a payment interface website, but I can’t decode it.

When I print :

echo $_POST;

I get:

Array

I get nothing when I try this:

if ( $_POST ) {
    foreach ( $_POST as $key => $value ) {
        echo "llave: ".$key."- Valor:".$value."<br />";
    }
}

I get nothing when I try this:

$string = $_POST['operation'];
$var = json_decode($string);
echo $var;

I get NULL when I try this:

$data = json_decode( file_get_contents('php://input') );
var_dump( $data->operation );

When I do:

$data = json_decode(file_get_contents('php://input'), true);
var_dump($data);

I get:

NULL

The JSON format is (according to payment site documentation):

{
   "operacion": {
       "tok": "[generated token]",
       "shop_id": "12313",
       "respuesta": "S",
       "respuesta_details": "respuesta S",
       "extended_respuesta_description": "respuesta extendida",
       "moneda": "PYG",
       "monto": "10100.00",
       "authorization_number": "123456",
       "ticket_number": "123456789123456",
       "response_code": "00",
       "response_description": "Transacción aprobada.",
       "security_information": {
           "customer_ip": "123.123.123.123",
           "card_source": "I",
           "card_country": "India",
           "version": "0.3",
           "risk_index": "0"
       }
    }
}

The payment site log says everything is OK. What’s the problem?

Sep 14, 2020 in PHP by kartik
• 37,490 points
3,155 views

1 answer to this question.

0 votes

Hello @kartik,

Try;

$data = json_decode(file_get_contents('php://input'), true);
print_r($data);
echo $data["operacion"];

From your json and your code, it looks like you have spelled the word operation correctly on your end, but it isn't in the json.

Hope it helps!!
Thank you!!

answered Sep 14, 2020 by Niroj
• 82,680 points

Related Questions In PHP

0 votes
1 answer

What is a Cookie? How to create Cookies With PHP?

A cookie is often used to identify ...READ MORE

answered Feb 13, 2020 in PHP by Niroj
• 82,680 points
999 views
0 votes
1 answer

How to prevent XSS with HTML/PHP?

Hello, HTML Encoding htmlspecialchars will convert any "HTML special characters" ...READ MORE

answered Apr 1, 2020 in PHP by Niroj
• 82,680 points
278 views
0 votes
1 answer

How to detect search engine bots with php?

Hello, You can checkout if it's a search ...READ MORE

answered Apr 20, 2020 in PHP by Niroj
• 82,680 points
382 views
0 votes
1 answer

How to convert from MySQL datetime to another format with PHP?

Hello, To convert a date retrieved from MySQL ...READ MORE

answered May 19, 2020 in PHP by Niroj
• 82,680 points
191 views
+1 vote
1 answer

How to make anchor tag with routing using Laravel?

Hey @kartik, First you have to go to ...READ MORE

answered Mar 18, 2020 in Laravel by Niroj
• 82,680 points
6,783 views
0 votes
1 answer

What is redirection in Laravel?

Named route is used to give specific ...READ MORE

answered Mar 18, 2020 in Laravel by Niroj
• 82,680 points
789 views
0 votes
1 answer

How to install Laravel via composer?

Hello, This is simple you just need to ...READ MORE

answered Mar 23, 2020 in Laravel by Niroj
• 82,680 points
591 views
+1 vote
1 answer

What are named routes in Laravel and How can specify route names for controller actions?

Hey @kartik, Named routing is another amazing feature of ...READ MORE

answered Mar 23, 2020 in Laravel by Niroj
• 82,680 points
7,183 views
0 votes
1 answer

How to generate .json file with PHP?

Hello @kartik, Here is a sample code: <?php $sql="select ...READ MORE

answered Sep 15, 2020 in PHP by Niroj
• 82,680 points
541 views
0 votes
1 answer

How to Validate Form Data With PHP?

Hey @kartik, The first thing we will do ...READ MORE

answered Feb 13, 2020 in PHP by Niroj
• 82,680 points
546 views