PHP 8.4.0 RC2 available for testing

openssl_digest

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

openssl_digestComputes a digest

Description

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.

Parameters

data

The data.

digest_algo

The 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.

Return Values

Returns the digested hash value on success or false on failure.

Errors/Exceptions

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

See Also

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User Contributed Notes 1 note

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mwgamera at gmail dot com
11 years ago
The second argument should be one of the values returned by openssl_get_md_methods() rather than hash_algos(). ‘Hash’ and ‘OpenSSL’ are independent extensions and support different selection of digest algorithms. Notably, Hash supports some non-cryptographic hashes like adler or crc.
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