Php/docs/function.get-class-vars
get_class_vars
(PHP 4, PHP 5, PHP 7)
get_class_vars — 返回由类的默认属性组成的数组
说明
get_class_vars
( string $class_name
) : array
返回由类的默认公有属性组成的关联数组。
参数
class_name- 类名
返回值
Returns an associative array of declared properties visible from the
current scope, with their default value.
The resulting array elements are in the form of
varname => value.
In case of an error, it returns false.
范例
Example #1 get_class_vars() example
<?phpclass myclass { var $var1; // this has no default value... var $var2 = "xyz"; var $var3 = 100; private $var4; // constructor function __construct() { // change some properties $this->var1 = "foo"; $this->var2 = "bar"; return true; }}$my_class = new myclass();$class_vars = get_class_vars(get_class($my_class));foreach ($class_vars as $name => $value) { echo "$name : $value\n";}?>
以上例程会输出：
var1 : var2 : xyz var3 : 100
Example #2 get_class_vars() and scoping behaviour
<?phpfunction format($array){ return implode('|', array_keys($array)) . "\r\n";}class TestCase{ public $a = 1; protected $b = 2; private $c = 3; public static function expose() { echo format(get_class_vars(__CLASS__)); }}TestCase::expose();echo format(get_class_vars('TestCase'));?>
以上例程会输出：
// 5.0.0 a| * b| TestCase c a| * b| TestCase c // 5.0.1 - 5.0.2 a|b|c a|b|c // 5.0.3 + a|b|c a
