(PHP 5 >= 5.1.2, PHP 7, PECL hash >= 1.1)
Generate a hash value (message digest)
string hash ( string $algo, string $data [, bool $raw_output = false ] )
Parameters:
algo
Name of selected hashing algorithm (e.g. "md5", "sha256", "haval160,4", etc..)
data
Message to be hashed.
raw_output
When set