Create your own crypt function for more security: http://is.php.net/manual/en/function.crypt.php#94176

<?php
$password = 'somepass';
$user_input = 'somepass';

echo "--- crypt ---\n";
$crypted = crypt($password); // let the salt be automatically generated
echo 'Crypted pass:' . $crypt . "\n";
if (crypt($user_input, $password) == $password) {
   echo "Password verified!\n";
}

echo "--- mycrypt ---\n";
function mycrypt($clear, $hashed = NULL) {
    $salt_len = 100;
    if (empty($hashed))
        for($salt = '', $x = 0; $x++ < $salt_len; $salt .= bin2hex(chr(mt_rand(0,255))));   // make a new salt
    else
        $salt = substr($hashed, 0, $salt_len*2);  //  extract existing salt

    return $salt . hash('whirlpool', $salt . $clear);
}

$mycrypted = mycrypt($password);
echo 'Crypted pass:' . $password . "\n";
if (mycrypt($user_input, $password) == $password) {
   echo "Password verified!\n";
}
?>