How to encrypt decrypt url or code in php

When developing web applications sometimes we encounter situations where we need to encrypt/decrypt url or some code or some information. For such situations I wrote a simple php script using the default php functions:

• base64_encode()
• base64_decode()

Now the use of these functions is quite simple. For example if you want to pass some critical information like password in the url like:

http://www.example.com/test.php?password=skills2earn

Then you can encode it using the following code:

http://www.example.com/test.php?password=<?php echo base64_encode('skills2earn'); ?>

The output of the above code will be:

http://www.example.com/test.php?password=c2tpbGxzMmVhcm4=

Now when you want to decode/decrypt it you can do it using the following code:

<?php
echo base64_decode('c2tpbGxzMmVhcm4=');
?>

The output of the above code will be:

skills2earn

Well guyz that was a very simple php encryption and decryption technique, if you have any queries or suggestions, please feel free to comment.