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>

and the javascript function is this one:

function show_error_message(test) {

alert(test)

}

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.