How to encrypt strings in PHP?

[fungc1n]

Dear All, pls help me !.
I'm new in php programming. I need to encrypt some customer informations in text/string format. Is there any function in php which can do it easily and safely? Thanks for your helps 🙂

[Anon]

PHP has a couple of types of encryption available to it, it just depends on what you are looking to do with the data.

There is Mcrypt, if you've complied in support for it: http://www.php.net/manual/en/ref.mcrypt.php

There is crypt, which is one-way (meaning you can't decrypt it): http://www.php.net/manual/en/function.crypt.php

[Anon]

Install mcrypt libraries as the other fellow provided links with.

And then, check out this link for spiffy encrypting/decrypting functions 🙂

http://www.phpbuilder.com/forum/read.php3?num=2&id=191476&loc=0&thread=191476

cheers,

kyle

[lucianoes]

Crypt() is a joke because you have to "salt" it with two characters, and the encrypted output of whatever you encrypt with crypt() will always start with the two characters you used to "salt" it. So, in some circumstances, it may be very easy for a hacker to brute force some protected information. You have to combine a lot of unpredictable components in a single function to achieve decent encryption.

Luciano ES
Santos, SP - Brasil