在php中将字符串转换为utf-8

Question

There is a script written in Java and I am trying to convert it into PHP, but I'm not getting the same output.

How can I get it in PHP same as in Java?

Script written in Java

String key = "hghBGJH/gjhgRGB+rfr4654FeVw12y86GHJGHbnhgnh+J+15F56H";

byte[] kSecret = ("AWS4" + key).getBytes("UTF8");

Output: [B@167cf4d

Script written in PHP

$secret_key = "hghBGJH/gjhgRGB+rfr4654FeVw12y86GHJGHbnhgnh+J+15F56H";
utf8_encode("AWS4".$secret_key);

Output: AWS4hghBGJH/gjhgRGB+rfr4654FeVw12y86GHJGHbnhgnh+J+15F56H

Answer 1

You can't sysout an byte array without converting it to a string, UTF-8 by default, toString() is being called,when you do something like:

System.out.println("Weird output: " + byteArray);

This will output the garbage you mentioned above. Instead, create a new instance of the standard String class.

System.out.println("UTF-8: " + new String(byteArray));