exception.php

<?php
class Service {

    public function create() {
        print "In service create\n";
        //try {
            $this->send();
        //}
        //catch(ServiceException $e) {
        //    print "catch service exception in create\n";
        //}
        //throw new ServiceException('Service can\'t be created due to this reason');
    }

    private function send() {
      print "In service send\n";
      throw new ServiceException('Service can\'t send email due to this reason!!');
    }
}

class ServiceException extends Exception {

}    

class ServiceAException extends Exception {
                                          
}

class ServiceA {

    public function create() {
        print "ServiceA :: create \n";
        print $this->send();
    }

    private function send() {
        print "ServiceA :: send \n";
        throw new ServiceAException('ServiceA can\'t send email due to this reason!!');
    }

}

class Wrapper {
    var $service;

    function __construct($service) {
        $this->service = $service;        
    }

    public function create(){
        $result = ['status' => '', 'message' => ''];
        try {
	        $this->service->create();
            $result['status']  = 'success';
            $result['message'] = 'service calls are success';
        }
        catch(ServiceException $e) {
            print "catch ServiceException :: {$e->getMessage()}\n";
            $result['status'] = 'error';
            $result['message'] = $e->getMessage();
        }
        catch(ServiceAException $e) {
            print "catch ServiceAException :: {$e->getMessage()}\n";
            $result['status'] = 'error';                           
            $result['message'] = $e->getMessage();
        }
        print json_encode($result);
        print "\n";
    }
}

$service = new Service;
$serviceA = new ServiceA;

$wrapper = new Wrapper($service);
$wrapper->create();

$wrapperA = new Wrapper($serviceA);
$wrapperA->create();

?>