Fatal error: Uncaught Error: Call to undefined function mcrypt_create_iv() in C:\ms4w\Apache\htdocs\mw\security\PasswordHash.php:45 Stack trace: #0 C:\ms4w\Apache\htdocs\mw\security\test.php(31): create_hash('foobar') #1 {main} thrown in C:\ms4w\Apache\htdocs\mw\security\PasswordHash.php on line 45