<!-- Collection of code snippets by Arne Vajhøj -->
<!-- from articles on eksperten.dk / vajhoej.dk (2004-now) -->
<?php
class Employee {
    public $no;
    public $name;
    public $role;
    public function __construct($no, $name, $role) {
        $this->no = $no;
        $this->name = $name;
        $this->role = $role;
    }
}

$json = '[ { "no" : 1, "name" : "Alan A", "role" : "Manager" }, ' .
          '{ "no" : 2, "name" : "Brian B", "role" : "Engineer" }, ' .
          '{ "no" : 3, "name" : "Chris C", "role" : "Sales rep" } ]';
// iterate over all employees
$employees = json_decode($json);
foreach($employees as $employee) {
    // find no, name and role
    $no = $employee->no;
    $name = $employee->name;
    $role = $employee->role;
    // print
    echo "no = $no\r\n";
    echo "name = $name\r\n";
    echo "role = $role\r\n";
}
// add employee
$employees[] = new Employee(4, 'Dave D', 'Intern');
// write out
echo json_encode($employees);
?>