Getter and Setter

PHP 5 objects support special __get() and __set() methods to access "virtual" properties that do not actually existing, but instead are emulated existing data.


class foo {
    private $int_data = array();

    function __get($var_name) {
        return $this->int_data[$var_name];

    function __set($var_name, $value)
        $this->int_data[$var_name] = urlencode($value);

$a = new foo();
$a->bar = "random value";
echo $a->bar; // will print random+value


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