<form method="post" action="">
<input type="text" name="user" id="user">
<input type="password" name="pass" id="pass">
<input type="submit" name="submit">
</form>

<?php
session_start();

require_once("connection.php");
require_once("passEncrypt.php");

if(isset($_POST["submit"])) {

$user = $_POST["user"];
$password = $_POST["pass"];

$pass = encrypt($password);

echo $pass;

}

?>

    <?php

function encrypt($pass){
// use blowfish algorithm 10 times
$hash_format="$2a$10$";
$salt_length=22;
$salt=generate_salt($salt_length);
// store this in DB
$format_and_salt=$hash_format . $salt ;
$hash = crypt($pass, $format_and_salt);
return $hash;
}

function generate_salt($length){
// return 32 character random string
$unique_string = md5(uniqid(mt_rand(), true));
// provides valid characters
$base64_string = base64_encode($unique_string);
// replaces + with .
$mod_base64_string = str_replace('+', '.', $base64_string );
// make string correct length
$salt=substr($mod_base64_string, 0, $length);
return $salt;
}
?>