Send JSON POST request with PHP

Question

I have this JSON data:

{ 
    userID: 'a7664093-502e-4d2b-bf30-25a2b26d6021',
    itemKind: 0,
    value: 1,
    description: 'Saude',
    itemID: '03e76d0a-8bab-11e0-8250-000c29b481aa'
}

and I need to post to JSON URL: http://domain/OnLeagueRest/resources/onleague/Account/CreditAccount

How can I send this POST request using PHP?

Really, charging an account over http! Please use https and a form of JWS to verify who sent it! — Hack5
– Hack5, Commented Jun 24, 2017 at 6:54

Muhammad Zeeshan · Accepted Answer · 2014-02-27 04:15:41Z

170

You can use CURL for this purpose see the example code:

$url = "your url";    
$content = json_encode("your data to be sent");

$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER,
        array("Content-type: application/json"));
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $content);

$json_response = curl_exec($curl);

$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

if ( $status != 201 ) {
    die("Error: call to URL $url failed with status $status, response $json_response, curl_error " . curl_error($curl) . ", curl_errno " . curl_errno($curl));
}


curl_close($curl);

$response = json_decode($json_response, true);

edited Feb 27, 2014 at 4:15

answered Jun 2, 2011 at 11:03

Muhammad Zeeshan

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2 Comments

ToolmakerSteve Over a year ago

curl example and user notes in php manual

Rajat Over a year ago

It's giving brackets syntax error, if we pass json object to json encode function.

ggorlen · Accepted Answer · 2023-05-15 00:25:54Z

Without using any external dependency or library:

$options = array(
  'http' => array(
    'method'  => 'POST',
    'content' => json_encode( $data ),
    'header'=>  "Content-Type: application/json\r\n" .
                "Accept: application/json\r\n"
    )
);

$context  = stream_context_create( $options );
$result = file_get_contents( $url, false, $context );
$response = json_decode( $result );

$response is an object. Properties can be accessed as usual, e.g. $response->...

where $data is the array containing your data:

$data = array(
  'userID'      => 'a7664093-502e-4d2b-bf30-25a2b26d6021',
  'itemKind'    => 0,
  'value'       => 1,
  'description' => 'Boa saudaÁ„o.',
  'itemID'      => '03e76d0a-8bab-11e0-8250-000c29b481aa'
);

Warning: this won't work if the allow_url_fopen setting is set to Off in the php.ini file.

If you're developing for WordPress, consider using the provided APIs: https://developer.wordpress.org/plugins/http-api/

@solarshado raw response headers can be fetched with stream_get_meta_data.
A small improvement suggestion, you could also put the headers in an array, especially if more headers such as Authorization need to be added. In that case, the "\r\n" should not be added.

ggorlen · Accepted Answer · 2023-05-15 00:19:05Z

3

Beware that file_get_contents solution doesn't close the connection as it should when a server returns Connection: close in the HTTP header.

CURL solution, on the other hand, terminates the connection so the PHP script is not blocked by waiting for a response.

edited May 15, 2023 at 0:19

ggorlen

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answered Oct 21, 2019 at 17:50

OndrejC

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