(PHP 7 >= 7.2.0, PHP 8)
sodium_bin2base64 — Encodes a raw binary string with base64.
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.
stringRaw binary string.
idSODIUM_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.
Base64-encoded string.
Example #1 sodium_bin2base64() example
<?php
$string = 'This is an encoded string';
echo sodium_bin2base64($string, SODIUM_BASE64_VARIANT_ORIGINAL);
?>The above example will output:
VGhpcyBpcyBhbiBlbmNvZGVkIHN0cmluZw==
Example #2 Example of the id parameter
<?php
$binaryString = sodium_hex2bin('aeb6798fef4e5184ff3b5596af753487');
var_dump(sodium_bin2base64($binaryString, SODIUM_BASE64_VARIANT_ORIGINAL));
var_dump(sodium_bin2base64($binaryString, SODIUM_BASE64_VARIANT_ORIGINAL_NO_PADDING));
var_dump(sodium_bin2base64($binaryString, SODIUM_BASE64_VARIANT_URLSAFE));
var_dump(sodium_bin2base64($binaryString, SODIUM_BASE64_VARIANT_URLSAFE_NO_PADDING));
?>The above example will output:
string(24) "rrZ5j+9OUYT/O1WWr3U0hw==" string(22) "rrZ5j+9OUYT/O1WWr3U0hw" string(24) "rrZ5j-9OUYT_O1WWr3U0hw==" string(22) "rrZ5j-9OUYT_O1WWr3U0hw"