sha1

(PHP 4 >= 4.3.0)

sha1 -- Calculate the sha1 hash of a string

Description

string sha1 ( string str [, bool raw_output])

Calculates the sha1 hash of str using the US Secure Hash Algorithm 1, and returns that hash. The hash is a 40-character hexadecimal number. If the optional raw_output is set to TRUE, then the sha1 digest is instead returned in raw binary format with a length of 20.

Замечание: The optional raw_output parameter was added in PHP 5.0.0 and defaults to FALSE

See also sha1_file(), crc32(), and md5()