openssl_digest

(PHP 5 >= 5.3.0, PHP 7)

openssl_digest — Computes a digest

openssl_digest ( string $data , string $method [, bool $raw_output = FALSE ] ) : string|false

Computes a digest hash value for the given data using a given method, and returns a raw or binhex encoded string.

data: The data.
method: The digest method to use, e.g. "sha256", see openssl_get_md_methods() for a list of available digest methods.
raw_output: Setting to TRUE will return as raw output data, otherwise the return value is binhex encoded.

Returns the digested hash value on successIm Fehlerfall wird FALSE zurückgegeben..

Emits an E_WARNING level error if an unknown signature algorithm is passed via the method parameter.