Android - 数据未添加到MySQL数据库 - 没有错误

I have been working on creating a login/register feature for an app I'm working on (NOTE: this app is for my own personal use right now, so I'm not looking to make my passwords super secure as of now). When I click the register button when running my app on an emulated Android device, Android Studio doesn't throw any errors, but nothing shows up when I check PHP MyAdmin. I've used different username and password combos (the ones here are obviously examples), a bunch of different localhost/127.0.0.1/10.0.2.2 combinations, and nothing seems to be working. When testing it online, 10.0.2.2:8080/android_login_api/register.php says the page cannot be displayed. localhost:8080/android_login_api/register.php at least displays, but with errors saying there is an unknown host (being 10.0.2.2:8080). Also, I am using Port 8080 with WAMP. Any help would be greatly appreciated, thank you!I have been working on creating a login/registe