sodium_bin2base64

(PHP 7 >= 7.2.0, PHP 8)

sodium_bin2base64 — Encodes a raw binary string with base64.

说明

sodium_bin2base64(string $string, int $id): string

Converts a raw binary string into a base64-encoded string. Unlike base64_encode(), sodium_bin2base64() is constant-time (a property that is important for any code that touches cryptographic inputs, such as plaintexts or keys) and supports multiple character sets.

参数

string

Raw binary string.

id

  • SODIUM_BASE64_VARIANT_ORIGINAL for standard (A-Za-z0-9/\+) Base64 encoding.
  • SODIUM_BASE64_VARIANT_ORIGINAL_NO_PADDING for standard (A-Za-z0-9/\+) Base64 encoding, without = padding characters.
  • SODIUM_BASE64_VARIANT_URLSAFE for URL-safe (A-Za-z0-9\-_) Base64 encoding.
  • SODIUM_BASE64_VARIANT_URLSAFE_NO_PADDING for URL-safe (A-Za-z0-9\-_) Base64 encoding, without = padding characters.

返回值

Base64-encoded string.