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sha1_file

(PHP 4 >= 4.3.0, PHP 5, PECL hash:1.1-1.3)

sha1_file — Calculate the sha1 hash of a file

Description

string sha1_file ( string $filename [, bool $raw_output ] )

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

Parameters

filename

The filename

raw_output

When TRUE, returns the digest in raw binary format with a length of 20. Defaults to FALSE.

Return Values

Returns a string on success, FALSE otherwise.

ChangeLog

Version Description
5.0.0 Added the raw_output parameter
5.1.0 Changed the function to use the streams API. It means that you can use it with wrappers, like sha1_file('http://example.com/..')