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.");
?>