PHP Manual: Encodes a raw binary string with base64.

Description

string sodium_bin2base64(#[\SensitiveParameter]string $string, int $id)

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.

Parameters

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.

Return Values

Base64-encoded string.