请问这个java的加解密文件转成PHP该怎么写

Question

希望有大佬帮忙解答一下，感谢

package cn.chinaLife.util;

import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class NewBase64 {
     private Logger logger = LoggerFactory.getLogger(NewBase64.class);

        private static final int RANGE = 0xff;
        //自定义码表 可随意变换字母排列顺序，然后会自动生成解密表
        private static final char[] Base64ByteToStr = new char[] {
                'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',// 0 ~ 9
                'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',// 10 ~ 19
                'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',// 20 ~ 29
                'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',// 30 ~ 39
                'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',// 40 ~ 49
                'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7',// 50 ~ 59
                '8', '9', '+', '/'// 60 ~ 63
        };

        private static byte[] StrToBase64Byte = new byte[128];

        public void generateDecoder() throws Exception {
            for(int i = 0; i <= StrToBase64Byte.length - 1; i++) {
                StrToBase64Byte[i] = -1;
            }
            for(int i = 0; i <= Base64ByteToStr.length - 1; i++) {
                StrToBase64Byte[Base64ByteToStr[i]] = (byte)i;
            }
        }

        private void showDecoder() throws Exception {
            String str = "";
            for(int i = 1; i <= StrToBase64Byte.length; i++) {
                str += (int)StrToBase64Byte[i - 1] + ",";
                if(i % 10 == 0 || i == StrToBase64Byte.length) {
                    logger.info(str);
                    str = "";
                }
            }
        }

        public String Base64Encode(byte[] bytes) throws Exception {
            StringBuilder res = new StringBuilder();
            //per 3 bytes scan and switch to 4 bytes
            for(int i = 0; i <= bytes.length - 1; i+=3) {
                byte[] enBytes = new byte[4];
                byte tmp = (byte)0x00;// save the right move bit to next position's bit
                //3 bytes to 4 bytes
                for(int k = 0; k <= 2; k++) {// 0 ~ 2 is a line
                    if((i + k) <= bytes.length - 1) {
                        enBytes[k] = (byte) (((((int) bytes[i + k] & RANGE) >>> (2 + 2 * k))) | (int)tmp);//note , we only get 0 ~ 127 ???
                        tmp = (byte) (((((int) bytes[i + k] & RANGE) << (2 + 2 * (2 - k))) & RANGE) >>> 2);
                    } else {
                        enBytes[k] = tmp;
                        tmp = (byte)64;//if tmp > 64 then the char is '=' hen '=' -> byte is -1 , so it is EOF or not print char
                    }
                }
                enBytes[3] = tmp;//forth byte
                //4 bytes to encode string
                for (int k = 0; k <= 3; k++) {
                    if((int)enBytes[k] <= 63) {
                        res.append(Base64ByteToStr[(int)enBytes[k]]);
                    } else {
                        res.append('=');
                    }
                }
            }
            return res.toString();
        }

        public byte[] Base64Decode(String val) throws Exception {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();//destination bytes, valid string that we want
            byte[] srcBytes = val.getBytes();
            byte[] base64bytes = new byte[srcBytes.length];
            //get the base64 bytes (the value is -1 or 0 ~ 63)
            for(int i = 0; i <= srcBytes.length - 1; i++) {
                int ind = (int) srcBytes[i];
                base64bytes[i] = StrToBase64Byte[ind];
            }
            //base64 bytes (4 bytes) to normal bytes (3 bytes)
            for(int i = 0; i <= base64bytes.length - 1; i+=4) {
                byte[] deBytes = new byte[3];
                int delen = 0;// if basebytes[i] = -1, then debytes not append this value
                byte tmp ;
                for(int k = 0; k <= 2; k++) {
                    if((i + k + 1) <= base64bytes.length - 1 && base64bytes[i + k + 1] >= 0) {
                        tmp = (byte) (((int)base64bytes[i + k + 1] & RANGE) >>> (2 + 2 * (2 - (k + 1))));
                        deBytes[k] = (byte) ((((int) base64bytes[i + k] & RANGE) << (2 + 2 * k) & RANGE) | (int) tmp);
                        delen++;
                    }
                }
                for(int k = 0; k <= delen - 1; k++) {
                    bos.write((int)deBytes[k]);
                }
            }
            return bos.toByteArray();
        }
        public static String getURLEncoderString(String str) {
            String result = "";
            if (null == str) {
                return "";
            }
            try {
                result = java.net.URLEncoder.encode(str, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            return result;
        }
        public static void main(String[] args) throws Exception {
            NewBase64 nb = new NewBase64();
            nb.generateDecoder();
            //String srcStr = "testfewa,./;'p[097&^%$$##!@#FDGSERH中国测试中文";
//            String srcStr = "{\\\"name\\\":\\\"vicken\\\",\\\"age\\\":20   }";
            String srcStr = "中国测试中文";
            System.out.println(" source:" + srcStr);
            String enStr = nb.Base64Encode(srcStr.getBytes());
            System.out.println("encoder:" + enStr);
            System.out.println(getURLEncoderString(enStr));
            String deStr = new String(nb.Base64Decode(enStr));
            System.out.println("decoder:" + deStr);
        }
}

Answer 1

base64 php自带啊

Answer 2

base64_encode
使用 MIME base64 对数据进行编码

base64_decode
对使用 MIME base64 编码的数据进行解码

urlencode
编码 URL 字符串

urldecode
解码已编码的 URL 字符串