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获取类名
get_class -- 返回对象的类名
string get_class ( object obj )
返回对象实例 obj 所属类的名字。如果 obj 不是一个对象则返回 FALSE。
获取类的所有方法
get_class_methods
(PHP 4, PHP 5)
get_class_methods -- 返回由类的方法名组成的数组
array get_class_methods ( mixed class_name )
返回由 class_name 指定的类中定义的方法名所组成的数组。
注: 从 PHP 4.0.6 开始,可以指定对象本身来代替 class_name,例如:$class_methods = get_class_methods($my_class);
获取类的所有属性名以及默认值
get_class_vars
(PHP 4, PHP 5)
get_class_vars -- 返回由类的默认属性组成的数组
描述
array get_class_vars ( string class_name )
返回由类的默认属性组成的关联数组,此数组的元素以 varname => value 的形式存在。
注: 在 PHP 4.2.0 之前,get_class_vars() 不会包含未初始化的类变量。
举例
下面是一个例子class dates
{
public $date;
public $firstDay;
public $secondDay;
public $thirdDay;
public $fourthDay;
public $fifthDay;
public $sixthDay;
public $userDate = 1; //是否是用户指定的日期
function __construct()
{
if (isset($_REQUEST["date"])) {
$this -> date = strtotime($_REQUEST["date"]);
$this -> userDate = true;
} else {
$this -> date = time();
$this -> userDate = false;
}
$this -> sixthDay = $this -> date - 86400;
$this -> fifthDay = $this -> sixthDay - 86400;
$this -> fourthDay = $this -> fifthDay - 86400;
$this -> thirdDay = $this -> fourthDay - 86400;
$this -> secondDay = $this -> thirdDay - 86400;
$this -> firstDay = $this -> secondDay - 86400;
}
public function firstDay() {
return date("Y-m-d",$this -> firstDay);
}
public function secondDay() {
return date("Y-m-d",$this -> secondDay);
}
public function thirdDay() {
return date("Y-m-d",$this -> thirdDay);
}
public function fourthDay() {
return date("Y-m-d",$this -> fourthDay);
}
public function fifthDay() {
return date("Y-m-d",$this -> fifthDay);
}
public function sixthDay() {
return date("Y-m-d",$this -> sixthDay);
}
public function date() {
return date("Y-m-d",$this -> date);
}
}
$a = new dates;
var_dump($a);
print_r(get_class_vars(dates));
print_r(get_class_methods(dates));
返回如下结果:object(dates)#1 (8) {
["date"]=>
int(1479179345)
["firstDay"]=>
int(1478660945)
["secondDay"]=>
int(1478747345)
["thirdDay"]=>
int(1478833745)
["fourthDay"]=>
int(1478920145)
["fifthDay"]=>
int(1479006545)
["sixthDay"]=>
int(1479092945)
["userDate"]=>
bool(false)
}
Array
(
[date] =>
[firstDay] =>
[secondDay] =>
[thirdDay] =>
[fourthDay] =>
[fifthDay] =>
[sixthDay] =>
[userDate] => 1
)
Array
(
[0] => __construct
[1] => firstDay
[2] => secondDay
[3] => thirdDay
[4] => fourthDay
[5] => fifthDay
[6] => sixthDay
[7] => date
)
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