PHP反射机制

<?php

class Test{
    public $var1 = 'var1';
    public $var2 = 'var2';
    private $var3 = 'var3';
    public function method1() {
        echo '1';
    }
    public function method2(){
        echo '2';
    }
    private function method3($v1, $v2, $v3) {
        echo '3' . $v1;
    }
}
print_r(get_class_methods('Test'));
print_r(get_class_vars('Test'));
//用反射类可以获得私有属性和私有方法
$ref = new ReflectionClass(new Test());
print_r($ref->getMethods());
print_r($ref->getProperties());

//执行私有方法
$ref = new ReflectionMethod('Test', 'method3');
$params  = $ref->getParameters();
$arg = [];
foreach ($params as $param) {
    if($param->getName()) {
        $arg[] = '参数1';
    }
}
//设置可见
$ref->setAccessible(true);
$ref->invokeArgs(new Test(), $arg);