[Ex094]

I got a perfect thing for you, You can set this up on your local server via WAMPP etc and you can test SQLi on it. It's called Damn Vulnerable Web Application, Get it from here http://www.dvwa.co.uk/, This will help you setup a Total Penetration testing Lab on your local server so you won't be needing to test your stuff online and get caught (https://www.owasp.org/index.php/Category...at_Project)
Have fun learning in a legit manner