how to fetch tickets from custom field

[rameshwebmaster]

hello,
i have created a tickets and added tag "lead" and my code is as below,
$tickets = Freshdesk::tickets()->all(['tag'=>'Lead']);
dd($tickets);
it only fetching using email but not by any other field?
how we can fetch all tickets which is related to any custom field?

Thanks in advance.

[rameshwebmaster]

hello i am able to search tickets by custom field using curl request
https://mydomain.freshdesk.com/api/v2/search/tickets?query="cf_category:'Lead'"
but i want to same result using default API call (PHP SDK).so which method should i call and how data should i pass for same?

Thanks