xml_update_customfield

<?php

$url = '';

$username = '';

$token = '';

$fieldid = ;

// Radiobutton

$xml_data = '

    <xmlrequest>    

<username>' . $username . '</username>

<usertoken>' . $token . '</usertoken>

        <requesttype>customfields</requesttype>  

        <requestmethod>Save</requestmethod>  

        <details>

<fieldid>'.(int)$fieldid.'</fieldid>

<fieldtype>checkbox</fieldtype>

<Options>

<Key></Key>

<Value></Value>

</Options>

<Settings>

<FieldName>API checkbox veldje</FieldName>

<FieldRequired>on</FieldRequired>

<Key>groen,blauw,oranje</Key>

<Value>groen,blauw,oranje</Value>

</Settings>

        </details>  

    </xmlrequest>

';

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_FAILONERROR, true);

curl_setopt($ch, CURLOPT_POST, true);

if (!ini_get('safe_mode') && ini_get('open_basedir') == '') {

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

}

curl_setopt($ch, CURLOPT_TIMEOUT, 10);

curl_setopt($ch, CURLOPT_POSTFIELDS, 'xml=' . $xml_data);

$pageData = curl_exec($ch);

if (!$pageData) {

echo "Error!: " . curl_error($ch);

echo "\n";

exit;

}

curl_close($ch);

echo $pageData . "\n";

?>