(PHP 5 >= 5.3.0, PHP 7, PHP 8)
openssl_digest — Computes a digest
openssl_digest(string $data, string $digest_algo, bool $binary = false): string|false
Computes a digest hash value for the given data using a given method, and returns a raw or binhex encoded string.
dataThe data.
digest_algoThe digest method to use, e.g. "sha256", see openssl_get_md_methods() for a list of available digest methods.
binary Setting to true will return as raw output data, otherwise the return value is binhex encoded.
Returns the digested hash value on success or false on failure.
Emits an E_WARNING level error if an unknown signature algorithm is passed via the digest_algo parameter.
© 1997–2025 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.openssl-digest.php