sha1_file
(PHP 4 >= 4.3.0, PHP 5, PECL hash:1.1-1.3)
sha1_file — Calculate the sha1 hash of a file
说明
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.
参数
- filename
-
The filename
- raw_output
-
When TRUE, returns the digest in raw binary format with a length of 20. Defaults to FALSE.
返回值
Returns a string on success, FALSE otherwise.
更新日志
| 版本 | 说明 |
|---|---|
| 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/..') |
