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sha1_file()

sha1_file - Calculate the sha1 hash of a file

Syntax

string sha1_file (string $filename, bool $raw_output)

Arguments

  • filename - The filename of the file to hash.
  • raw_output - When TRUE, returns the digest in raw binary format with a length of 20.

Description

Calculates the sha1 hash of the file specified by filename using the » US Secure Hash Algorithm 1, and returns that hash. The hash is a 40-character hexadecimal number.

Version

PHP 4.3.0, 5

Return value

Returns a string on success, FALSE otherwise.