Question

将以下代码转换成php

public String a(byte[] paramArrayOfByte) {
StringBuilder localStringBuilder = new StringBuilder();
int i = paramArrayOfByte.length;
for (int j = 0; j < i; j++) {
String str1 = Integer.toHexString(paramArrayOfByte[j] & 0xFF);
String str2 = str1;
if (str1.length() == 1) {
str2 = "0" + str1;
}
localStringBuilder.append(str2);
}
return localStringBuilder.toString();
}

private byte[] sec(String s) throws NoSuchAlgorithmException, InvalidKeyException {
String key = "BrpsKMMjvOvlQJOfxS+eH6rdf3QfFSJ8Wjr80fzkhOmgll4EaIWCSgjPZsHQDPINXq3R3se5ldgLbBI5AhBaN/zjaBDk8ERscn";
SecretKeySpec sks = new SecretKeySpec(key.getBytes(), "HmacSHA1");
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(sks);
return mac.doFinal(s.getBytes());
}

Answer 1

include <iostream>
#include <stdio.h>
int jc(int m){
if(m!=1) return m*jc(m-1);
else return 1;
}
int c(int m,int n){
if(m>=n) return jc(m)/(jc(n)*jc(m-n));
}
int main(void){
int m,n;
scanf("%d%d",&m,&n);
printf("%d\n",c(m,n));
return 0;
}