|
|
Tutorials » Php »
|
Topic |
What is crypt Function and how it is used in string?
|
|
Explanation |
|
In PHP, this function is used for one-way string encryption or hashing.
And also it uses different algorithms like DES,MD5, BLOWFISH, based on the values of
constants used along with the crypt function.
| CONSTANT |
DESCRIPTION |
| CRYPT_STD_DES |
Standard DES-based encryption with a two character salt |
| CRYPT_EXT_DES |
Extended DES-based encryption with a nine character salt |
| CRYPT_MD5 |
MD5 encryption with a twelve character salt starting with $1$ |
| CRYPT_BLOWFISH |
Blowfish encryption with a sixteen character salt starting with $2$ or $2a$ |
Syntax:
crypt(str,salt)
In the above syntax "str" specifies the string to be encrypted,"salt" is the number of characters
to be encoded.
Example:
<?php
if (CRYPT_STD_DES == 1)
{
echo "Standard DES: ".crypt("hiox india")."\n<br/>";
}
if (CRYPT_EXT_DES == 1)
{
echo "Extended DES: ".crypt("hiox india")."\n<br/>";
}
if (CRYPT_MD5 == 1)
{
echo "MD5: ".crypt("hiox india")."\n<br/>";
}
if (CRYPT_BLOWFISH == 1)
{
echo "Blowfish: ".crypt("hiox india");
}
?>
Result:
Standard DES: $1$uK..fl2.$MOB0iNfMOiXYhVyj9yCLX0
MD5: $1$6D3.Vl2.$f7oVTfnVpCWi0ufek6q5x1
In the above example, results for the supported algorithm Standard DES, MD5 is returned.
|
|
A Note |
Learn PHP programming language tutorial with simple and neat example. Hope you enjoy this free tutorial.
Do give us your valuable feedback and suggestions on this online tutorial. This is a Copyright Content.
|
|
|
|
Home
Scripts
Tutorials
Images
Tools
Purchase
Snippets
