sha1_file
(PHP 4 >= 4.3.0, PHP 5)
sha1_file — Calculate the sha1 hash of a file
Description
string sha1_file
( string $filename
[, bool $raw_output = false
] )
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.
Parameters
- filename
-
The filename of the file to hash.
- raw_output
-
When TRUE, returns the digest in raw binary format with a length of 20.
Return Values
Returns a string on success, FALSE otherwise.
Examples
Example #1 sha1_file() example
<?php
foreach(glob('/home/Kalle/myproject/*.php') as $ent)
{
if(is_dir($ent))
{
continue;
}
echo $ent . ' (SHA1: ' . sha1_file($ent) . ')', PHP_EOL;
}
?>
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/..') |
See Also
- sha1() - Calculate the sha1 hash of a string
- md5_file() - Calculates the md5 hash of a given file
- crc32() - Calculates the crc32 polynomial of a string