Hex2Bin error

[zhoupufelix]

package main

import (
"fmt"
"strconv"
)

// Hex2bin hex2bin()
func Hex2bin(data string) (string, error) {
i, err := strconv.ParseInt(data, 16, 0)
if err != nil {
return "", err
}
return strconv.FormatInt(i, 2), nil
}

func main(){
fmt.Println(Hex2bin("48656c6c6f20576f726c6421"))
}

When I used this method, it returned an error below.
//strconv.ParseInt: parsing "48656c6c6f20576f726c6421": value out of range

If I use php function hex2bin()

:

It shows us ,

Hello World!

[townsymush]

Have the same issue

[zhoupufelix]

Have the same issue

I create a new function ,just use this function,It will help u

func Hex2binStr(h string)(str string,err error){
l := len(h)
length,k := l,0
bHex := make([]byte,l/2)
for i:=0;i<length;i+=2 {
if l == 1 {
break
}
//every two byte
s := string(h[i:i+2])
//hex
bt,err:= strconv.ParseInt(s,16,32)
if err != nil {
return "",err
}
bHex[k] = byte(bt)
k++
l-=2
}
return string(bHex),nil
}