<?php



function httpPost($url, $data)

{

    $curl = curl_init($url);

    curl_setopt($curl, CURLOPT_POST, true);

    curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($data));

    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

    $response = curl_exec($curl);

    curl_close($curl);

    return $response;

}



$BUSINESS_MANAGER_ID = "";

$ACCESS_TOKEN = "";

$CREATE_OFFLINE_SET_URL = "https://graph.facebook.com/v5.0/$BUSINESS_MANAGER_ID/offline_conversion_data_sets";



$data = array(

  'name' => 'TEST OFFLINE EVENT SET API',

  'access_token' => $ACCESS_TOKEN

);



$results = httpPost($CREATE_OFFLINE_SET_URL, $data);

echo $results;

$created = json_decode($results);



$offline_id = $created->id;

$offline_upload_url = "https://graph.facebook.com/v5.0/$offline_id/events";



$sample_data = array(

  'upload_tag' => 'sales_data',

  'access_token' => $ACCESS_TOKEN,

  'data' => array(

    array(

      'match_keys' => array(

            'phone' => array(hash('sha256', '6505555555'), hash('sha256', '6505555555')),

            'email' => array(hash('sha256', 'email@test.com'), hash('sha256', 'email@test.com'))

      ),

      'currency' => 'USD',

      'value' => 16,

      'event_name' => 'Purchase',

      'event_time' => 1456870902

    ),

    array(

      'match_keys' => array(

            'phone' => array(hash('sha256', '6505555555'), hash('sha256', '6505555555')),

            'email' => array(hash('sha256', 'email@test.com'), hash('sha256', 'email@test.com'))

      ),

      'currency' => 'USD',

      'value' => 16,

      'event_name' => 'Purchase',

      'event_time' => 1456870902

    )

  )

);



var_dump(httpPost($offline_upload_url, $sample_data));



?>