<?php
    class someClass {
        private $data;

        public function __construct() {
            global $con;
            $this->con = $con;
        }

        public function getSearch($search_array);
            $this->getSearch = '';
            foreach ($search_array as $k => $v) {
                $likes[] = "$k LIKE '%$v%'";
            }
            $where = implode(' AND ',$likes);
            $query = "SELECT title,cat_name,country_name,state_name,city_name
                             FROM classified
                             LEFT JOIN user on classified.user_id=user.id
                             LEFT JOIN category on classified.category_id=category.id
                             LEFT JOIN countries on user.country=countries.id
                             LEFT JOIN states on user.state=states.id
                             LEFT JOIN cities on user.city=cities.id
                             WHERE $where";
            if (!$result = $this->con->query($query)) {
                $this->getSearch->error = 'Error - Connection, Search : ' . $this->con->error;
                return false;
            }
            if ($result->num_rows == 0) {
                $this->getSearch->error = 'Warning - Search: No Record Found';
                return false;
            }
            WHILE ($row = $result->fetch_assoc()) {
                $data[] = $row;
            }
            return $data;
    }

    $someClass = new someClass;

    if (ISSET($_POST['search'])) {
        $search_array = $_POST;
        unset($search_array['search']);
        $result = $someClass->getSearch($search_array);
        echo $result = (is_array($result)) ? print_r($result) : $someClass->getSearch->error;
    }
?>