sha1_file
Description
Calculate the sha1 hash of a file
Syntax
sha1_file(string $filename, bool $binary = false): string|false
Parameters
filenameThe filename of the file to hash.
binaryWhen true, returns the digest in raw binary format with a length of 20.
Return
Returns a string on success, false otherwise.
Examples
1 · filename
<? $filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/txt/file.txt'; $return = sha1_file($filename); echo $return; ?>
f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0
2 · binary
<?
$filename = $_SERVER['DOCUMENT_ROOT'] . '/assets/txt/file.txt';
$binary = true;
$return = sha1_file($filename, $binary);
$unpack = unpack('H*', $return);
$array_pop = array_pop($unpack);
echo $array_pop;
?>f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0
