<?php
class Corporate_Drone{
 private $employeeid;
 private $tiecolor;
 function setEmployeeID($employeeid) {
 $this->employeeid = $employeeid;
 }

 function getEmployeeID() {
 return $this->employeeid;
 }
 
 function setTiecolor($tiecolor) {
 $this->tiecolor = $tiecolor;
 }
 
 function getTiecolor() {
 return $this->tiecolor;
 }
}

$drone1 = new Corporate_Drone();
$drone1->setEmployeeID("12345");
$drone1->setTiecolor("red");
$drone2 = clone $drone1;
$drone2->setEmployeeID("67890");

printf("drone1 employeeID:%d <br />",$drone1->getEmployeeID());
printf("drone1 tie color:%s <br />",$drone1->getTiecolor());
printf("drone2 employeeID:%d <br />",$drone2->getEmployeeID());
printf("drone2 tie color:%s <br />",$drone2->getTiecolor());
?>

class Employee {
 ...
}

class Executive extends Employee{
 ...
}

class CEO extends Executive{
 ...
}

<?php
interface IPillage
{
 // CONST 1;
 function emptyBankAccount();
 function burnDocuments();
}

class Employee {

}

class Excutive extends Employee implements IPillage {
 private $totalStockOptions;
 function emptyBankAccount() {
 echo "Call CFO and ask to transfer funds to Swiss bank account";
 }
 function burnDocuments() {
 echo "Torch the office suite.";
 }
}

class test {
 function testIP(IPillage $ib) {
 echo $ib->emptyBankAccount();
 }
}
$excutive = new Excutive();
$test = new test();
echo $test->testIP($excutive);
?>

abstract class Class_name
{
 //insert attribute definitions here
 //insert method definitions here
}

<?php
namespace Library;
class Clean {
 function printClean() {
 echo "Clean...";
 }
}
?>

<?php
include "test.php";
$clean = new \Library\Clean();
$clean->printClean();
?>