Using Crypt to Encrypt Password in PHP

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Sometimes we need to encrypt a password hash in php before inserting it into the database. This should not be used for user password but maybe an additional password. Either way it is fun to work with. The code below will reveal this information.

$1$aGwdyCbv$dwOWTv3mGDXIH0tHK7Ova1 hash

<?php $passwordtohash = 'mypassword'; $hash = crypt($passwordtohash); echo $hash; echo $passwordtohas; ?>

Explaining the Crypt Code and Process

The php variable of $pass is holding within it "hash". We then take the variable $passwordtohash and put the crypt function on it and store it in another variable called $hash. We then echo out both the $hash and the $passwordtohash to see what they look like.

Uses of PHP Crypt

Remember there is no way to decrypt the algorithm. So this would only be good if you wanted a use to enter something to match something that is encrypted like a password hash. You would also want to encrypt your password with something like

$encrypted=sha1(md5($passwordtohash));

More info on php crypt