<?php

$decode = "60, 115, 99, 114, 105, 112, 116, 32, 116, 121, 112, 101, 61, 34, 116, 101, 120, 116, 47, 106, 97";
$a = explode(',',$decode);

foreach($a as $value)
{
    echo( chr($value) );
}

<script type="text/ja