Online PHP editor | output for KSGeX

<?php $source = [ [ "mail_id" => "29848947", "last_name" => "Doe", "first_name" => "Jon", "email" => "jdoe@gmail.com", "status" => "opened" ], [ "mail_id" => "340980398", "last_name" => "Doe", "first_name" => "Jane", "email" => "janedoe@gmail.com", "status" => "sent" ], [ "mail_id" => "877586", "last_name" => "Dwaye", "first_name" => "Jhon", "email" => "Jhondw@yahoo.com", "status" => "clicked" ], [ "mail_id" => "225253463", "last_name" => "Doe", "first_name" => "Jon", "email" => "jdoe@gmail.com", "status" => "opened" ], [ "mail_id" => "849849w4", "last_name" => "Doe", "first_name" => "Jane", "email" => "janedoe@gmail.com", "status" => "sent" ] ]; $result = array_map(function($email) use($source) { $events = array_values(array_filter($source, function($event) use($email) { return $event['email'] == $email; })); return [ "first_name" => $events[0]["first_name"], "last_name" => $events[0]["last_name"], "email" => $email, "opened" => count(array_filter($events, function($event) { return $event["status"] == "opened"; })), "blocked" => count(array_filter($events, function($event) { return $event["status"] == "blocked"; })), "hard_bounced" => count(array_filter($events, function($event) { return $event["status"] == "hard_bounced"; })), "soft_bounced" => count(array_filter($events, function($event) { return $event["status"] == "soft_bounced"; })), "sent" => count(array_filter($events, function($event) { return $event["status"] == "sent"; })), "clicked" => count(array_filter($events, function($event) { return $event["status"] == "clicked"; })), ]; }, array_unique(array_column($source, "email"))); print_r($result);