md5_file
(PHP 4 >= 4.2.0, PHP 5, PECL hash:1.1-1.3)
md5_file — Calculates the md5 hash of a given file
说明
string md5_file
( string $filename
[, bool $raw_output
] )
Calculates the MD5 hash of the file specified by the filename parameter using the » RSA Data Security, Inc. MD5 Message-Digest Algorithm, and returns that hash. The hash is a 32-character hexadecimal number.
参数
- filename
-
The filename
- raw_output
-
When TRUE, returns the digest in raw binary format with a length of 16. 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 md5_file('http://example.com/..') |
