how to work with hooks

[toshu]

hi 

i have write a hook for clientAdd. what i am expecting is after creating/adding client it should call my hook and post all fields data to my other server to create that cllient in my database.

<?php
if (!defined("WHMCS"))
    die("This file cannot be accessed directly");

define('BASE_URL','http://mydomain.com:4212/');

function add_client($vars)
{
    $url=BASE_URL.'createclient';
    $header[]='Authorization: custom:gventure';
    $header[]='Content-Type: application/json';
    $ch = curl_init();
    curl_setopt($ch,CURLOPT_URL, $url);
    curl_setopt($ch,CURLOPT_POST, count($post_data));
    curl_setopt($ch,CURLOPT_POSTFIELDS, json_encode($vars));
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    curl_close($ch);
    $data=json_decode($result,true);

error_log(print_r($vars, true), 3, __DIR__.'/file.log'); //DID nothing :(

    return $data["records"];
}

add_hook("ClientAdd",1,"add_client");
?>

Other details:

• filename is myhook.php
• just place under /includes/hooks/ directory
• is there any other setting i have to do in the code or panel? like registering my hooks i dont get it actually.

 i didnt get any hit from my side. using nodajs from my side.