Get id using getSearchRecordsByPDC and update record using updateRecords in PHP

Hi,

I have a problem while i am trying to update records in Zoho CRM using the contact id. I get the contact id using getSearchRecordsByPDC because i only have the contact email.

I use this code in php:

$urlObtenerId='https://crm.zoho.com/crm/private/xml/Contacts/getSearchRecordsByPDC?';

$criterioObtenerId='apikey='.$zoho_api.'&ticket='.$ticket.'&selectColumns=Contacts(Id)&searchColumn=email&searchValue='.$email;

//echo $urlObtenerId.$criterioObtenerId;

$ch0 = curl_init();

curl_setopt($ch0, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch0, CURLOPT_POST, true);

curl_setopt($ch0, CURLOPT_POSTFIELDS, $criterioObtenerId);

curl_setopt($ch0, CURLOPT_URL, $urlObtenerId);

$result0 = curl_exec($ch0);

//echo $result0;

$error0=curl_error($ch0);

if($error0) throw Exception_ForUser('Error al realizar la búsqueda del registro en Zoho CRM');

curl_close($ch0);

$id=$result0;

echo $id;

//Información a enviar

$xml= getZohoXML($first_name,$last_name,$email,$phone);

//Creamos la url con los datos

$zoho_url='https://crm.zoho.com/crm/private/xml/Contacts/updateRecords?';

$data='newFormat=1&apikey='.$zoho_api.'&ticket='.$ticket.'&xmlData='.$xml.'&id='.$id;

//echo $zoho_url.$data;

//Realizamos la llamada

$ch = curl_init();

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_POST, true);

curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

curl_setopt($ch, CURLOPT_URL, $zoho_url);

$result = curl_exec($ch);

echo $result;

$error=curl_error($ch);

if($error) throw Exception_ForUser('Error al modificar el registro');

curl_close($ch);

The getSearchRecordsByPDC returns the id correctly but when I execute the updateRecords, always returns error " 4600 Unable to process your request. Please verify if the name and value is appropriate for the "id" parameter".

If I use a variable with the contact id, the code works fine.