将PHP数组作为数组传递给外部Javascript函数

我正在做一些我需要将数组从我的php传递到外部javascript上的函数的东西。我现在正在进行一些测试，看起来像这样：

I'm doing something which I need to pass an array from my php to a function on an external javascript. I'm currently doing some test right now which looks like this:

<input type="text" onclick="show_error_message('<?php echo $array_sample ?>')" readonly="readonly">

并且javascript函数是这一个：

and the javascript function is this one:

function show_error_message(test) {
alert(test)
}

我的$ array_sample包含的数据是数组（1，2，3）; 但返回警报将是数组和每当我将 $ array_sample 更改为 $ array_sample [0] 时，传递参数我得到的数据是1作为警报。我想知道如何通过javascript中的数组传递整个数组。好吧你可以看到，我打算将它作为一个弹出消息来处理错误，这就是为什么我需要它是动态的。

my $array_sample contains data which is array("1","2","3"); but the return alert would be Array and whenever I change the $array_sample into $array_sample[0] when passing the parameters I got a data which is 1 as alert. I wonder how can I pass the whole array on this to be fetched also by an array in javascript. Well as you can see, I intended it to be a popup message for error handling which is why I need it to be dynamic.