How to update custom field by using Trello API?

[Денис Диан]

I am trying to update custom field, but it doesnt work, the documentation is little bit small about this, does somebody can help me with that?

My code 

$trello_key          = 'xxx';

$trello_member_token = 'xxx';

$valueArr = array('text' => '222');

$value = json_encode($valueArr);

$url = 'https://api.trello.com/1/cards/608bb4a0ca7cf62d9f0cbce9/customField/608ab6027d7a2832d8c9d5dd/item';

$fields='token='.$trello_member_token;

$fields.='&key='.$trello_key;

$fields.='&value='.$value;

function trello_post($url, $fields{    

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url); 

curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);

curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)");

curl_setopt($ch, CURLOPT_HEADER, 0);

curl_setopt($ch, CURLINFO_HEADER_OUT, true); 

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_TIMEOUT, 0);

curl_setopt($ch, CURLOPT_PUT, 1);

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

$output = curl_exec($ch);

curl_close($ch); 

return json_decode($output);

}

$result = trello_post($url, $fields);

[Vero Rivas]

Hi @Денис Диан 

    I advise you to read the trello API

    https://developer.atlassian.com/cloud/trello/rest/api-group-customfields/#api-customfields-post

Cheers