<?php
	$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); 
	$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); 
	echo mcrypt_encrypt(MCRYPT_RIJNDAEL_256, "passwort", "Ich bin geheim!", MCRYPT_MODE_ECB, $iv);
?>