Php/docs/function.openssl-digest
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openssl_digest
(PHP 5 >= 5.3.0, PHP 7)
openssl_digest — Computes a digest
Description
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.
Parameters
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.
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 method
parameter.