sha1
Calculate the sha1 hash of a string
Warning
It is not recommended to use this function to secure passwords,
due to the fast nature of this hashing algorithm. See the
Password Hashing FAQ
for details and best practices.
Parameters
-
string
-
The input string.
-
binary
-
If the optional binary 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.
Return Values
Returns the sha1 hash as a string.
Examples
Example #1 A sha1 example
<?php
$str = 'apple';
if (sha1($str) === 'd0be2dc421be4fcd0172e5afceea3970e2f3d940') {
echo "Would you like a green or red apple?";
}
?>