I have PHP 7 in my Xampp but I want to run an older project in PHP 5 and codeigniter, so when I was setting up for two version of PHP on Xampp with config httpd-xampp.conf in according to the way (Add Directories to run specific PHP version) was in Stack Overflow in this link Is there way to use two PHP versions in XAMPP?, then I browse localhost/my_older_project I got many warning:
PHP Startup: Unable to load dynamic library 'c:\xampp\php\ext\bz2' - The specified module could not be found.
PHP Startup: Unable to load dynamic library 'c:\xampp\php\ext\curl' - The specified module could not be found.
PHP Startup: Unable to load dynamic library 'c:\xampp\php\ext\fileinfo' - The specified module could not be found.
PHP Startup: Unable to load dynamic library 'c:\xampp\php\ext\php_ftp.dll' - %1 is not a valid Win32 application.
What's wrong with this?