一个接口经过java 的des,base64加密，解密,求对应的php代码

import javax.crypto.Cipher;  

import javax.crypto.spec.IvParameterSpec;  

import javax.crypto.spec.SecretKeySpec;  



import net.sf.json.JSONObject;



import org.apache.commons.codec.binary.Base64;



public class DES {

	private static byte[] iv = { 1, 2, 3, 4, 5, 6, 7, 8 };

	private static String encryptKey="liming";

	public static String encryptDES(String encryptString)

			throws Exception {

		IvParameterSpec zeroIv = new IvParameterSpec(new byte[8]);

		IvParameterSpec zeroIv = new IvParameterSpec(iv);

		SecretKeySpec key = new SecretKeySpec(encryptKey.getBytes(), "DES");

		Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");

		cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);

		byte[] encryptedData = cipher.doFinal(encryptString.getBytes("UTF-8"));

		return MyBase64.encode(encryptedData);



	}



	public static String decryptDES(String decryptString)

			throws Exception {

		byte[] byteMi = new MyBase64().decode(decryptString);

		IvParameterSpec zeroIv = new IvParameterSpec(iv);

		 IvParameterSpec zeroIv = new IvParameterSpec(new byte[8]);

		SecretKeySpec key = new SecretKeySpec(encryptKey.getBytes(), "DES");

		Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");

		cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);

		byte decryptedData[] = cipher.doFinal(byteMi);

		return new String(decryptedData , "UTF-8");

		return decryptString;

		return   new String(byteMi,"UTF-8");

	



	}