Encrypt/Secure DB connection string in php

Question

one of the project required me to encrypt DB connection string (username & password).

Usually I use .htaccess to restrict user to access from web. But this pro

Answer 1

if the extension is available on your server you can use mcrypt Store your username and password crypted in a file outside the web root and read/write it with mcrypt

For exemple :

$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$key = "This is a very secret key";
$text = "myusername";
echo $text . "\n";

$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB, $iv);
echo $crypttext . "\n";

End of course mcrypt_decrypt let you get the original string.