php 动态执行带有参数的类方法

<?php 
// 使用了NameSpace的例子 
namespace Foobar; 
class Foo { 
static public function test() { 
print "Hello world!\n"; 
} 
} 
call_user_func(__NAMESPACE__ .'\Foo::test'); // As of PHP 5.3.0 
// Hello world! 
call_user_func(array(__NAMESPACE__ .'\Foo', 'test')); // As of PHP 5.3.0 
// Hello world! 
?>

<?php 
// 直接调用方法的例子 
class myclass { 
static function say_hello() 
{ 
echo "Hello!\n"; 
} 
} 
$classname = "myclass"; 
call_user_func(array($classname, 'say_hello')); 
call_user_func($classname .'::say_hello'); // As of 5.2.3 
?>

<?php 
// 执行带有参数的类 
class Loveapple{ 
public function sayHello($a, $b){ 
echo "Hello:".$a.". ".$b."\n"; 
} 
} 
$obj = new Loveapple(); 
//执行结果 Hello:loveapple. Using instance. 
call_user_func(array($obj, "sayHello"), "loveapple", "Using instance."); 
//执行结果 Hello:loveapple. Using class name. 
call_user_func(array("Loveapple", "sayHello"), "loveapple", "Using class name."); 
?>