http://php.net/manual/zh/function.call-user-func-array.php

感觉用这种方法来调用函数或者对象的方法很有逼格啊

call_user_func_array — 调用回调函数，并把一个数组参数作为回调函数的参数

<?php

function foobar($arg, $arg2) {

    echo __FUNCTION__, " got $arg and $arg2 <br>";
}

call_user_func_array("foobar", array("one", "two"));

输出结果: foobar got one and two

<?php

class foo {
     function bar($arg, $arg2) {
         echo __METHOD__, " got $arg and $arg2<br>";
     }
}

// Call the $foo->bar() method with 2 arguments
$foo = new foo;

call_user_func_array(array($foo, "bar"), array("three", "four"));

输出结果: foo::bar got three and four