Conversion SHA1 byte array from java to PHP
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I have to update one web app from Java to PHP and I found some hard problems...
The big problem is to convert the SHA1 from Java to PHP because someone before me developed an browser extension that need a particular auth code to work... i can't change the plugin, i have only to convert the web app from java to php...

This is the code:

     private static final byte[] SecretKey;
    
      public static String AuthCode(String url) {
    
        byte[] urlBytes = url.getBytes("US-ASCII");
    
        byte[] concatenated = new byte[SecretKey.length + urlBytes.length];
        System.arraycopy(SecretKey, 0, concatenated, 0, SecretKey.length);
        System.arraycopy(urlBytes, 0, concatenated, SecretKey.length, urlBytes.length);
    
        byte[] hash = HashTools.calculateHash(concatenated, "SHA1");
        return CodecTools.encodeBASE64(hash);
      }
    
      static {
        SecretKey = new byte[] { 18, -15, -48, 73, 54, -115, 34, -87 };
      }

Now, I found very hard convert the SecretKey from byte to something else in php.. because php don't have byte variable... and i read that sha1 in php is different from java.

In PHP I can't make a sha1 of a array chars, it want only a String...

(the other stackoverflow answers suggest only how to change Java code to be equal to php.. I need that the PHP code should be equal to Java...)

I hope in someone that help me because I don't really know Java...

Thanks to all :)
