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sha1

Calculate the sha1 hash of a string (PHP 4 >= 4.3.0, PHP 5, PECL hash:1.1-1.3)
string sha1 ( string str [, bool raw_output] )

Calculates the sha1 hash of str using the » US Secure Hash Algorithm 1,

Parameters

str

The input string.

raw_output

If the optional raw_output is set to TRUE, then the sha1 digest is instead returned in raw binary format with a length of 20, otherwise the returned value is a 40-character hexadecimal number. Defaults to FALSE.

Return Values

Returns the sha1 hash as a string.

ChangeLog

VersionDescription
5.0.0 The raw_output parameter was added.

Examples

Example 2430. A sha1() example

<?php
$str
= 'apple';

if (
sha1($str) === 'd0be2dc421be4fcd0172e5afceea3970e2f3d940') {
   echo
"Would you like a green or red apple?";
   exit;
}
?>