PHP: crypt() function
PHP: One-way string hashing
The crypt() is used to encrypts a string using DES, Blowfish, and MD5 (if available) algorithms.
Version:
(PHP 4 and above)
Syntax:
crypt(string1, salt)
Parameters:
| Name | Description | Required / Optional |
Type |
|---|---|---|---|
| string1 | The string to be encrypted. | Required | String |
| salt | An optional salt string to base the hashing on. If not provided, the behavior is defined by the algorithm implementation and can lead to unexpected results. | Optional | String |
Return value:
The encrypted string.
Value Type: string
Example:
<?php
echo "Standard DES: ".crypt("Thank you")."\n<br />";
echo "Extended DES: ".crypt("Thank you")."\n<br />";
echo "MD5: ".crypt("Thank you")."\n<br />";
echo "Blowfish: ".crypt("Thank you");
?>
Output:
Standard DES: $1$cx1./y3.$H.8Trcy6pLgimqOWmGYrh/ Extended DES: $1$aU0.bl3.$h0A8HqJMF8gA3KwoZa6vq0 MD5: $1$Ic4.x85.$VmsInH4NRIb9WS5ofMGi80 Blowfish: $1$m00.1U3.$8BdJ6KtYIhRSMSJVqQpN71
View the example in the browser
See also