diff options
Diffstat (limited to 'UPGRADING')
-rw-r--r-- | UPGRADING | 19 |
1 files changed, 18 insertions, 1 deletions
@@ -24,12 +24,29 @@ PHP 8.1 UPGRADE NOTES ======================================== - hash: - . Added MurmurHash3 with streaming support. The following variants are implemented + . The following functions have changed signatures: + + - function hash(string $algo, string $data, bool $binary = false, array $options = []): string|false {} + - function hash_file(string $algo, string $filename, bool $binary = false, array $options = []): string|false {} + - function hash_init(string $algo, int $flags = 0, string $key = "", array $options = []): HashContext {} + + The additional `$options` argument can be used to pass algorithm specific data. + + . Added MurmurHash3 with streaming support. The following variants are implemented: - murmur3a, 32-bit hash - murmur3c, 128-bit hash for x86 - murmur3f, 128-bit hash for x64 + The initial hash state can be passed through the `seed` key in the `$options` array, for example: + + ```php + $h = hash("murmur3f", $data, options: ["seed" => 42]); + echo $h, "\n"; + ``` + + A valid seed value is within the range from 0 to the plaform defined UINT_MAX, usually 4294967295. + ======================================== 3. Changes in SAPI modules ======================================== |