Help! The information is not displaying correctly (Avengers Character Search)

Question

I want to look up any Superhero by typing their name or alias into the textfield and retrieve only that superhero OR leave the text field blank and when I click search, it should return the original list of superheroes:
Captain America
Ironman
Spider-Man etc…

However, when I click search it’s showing everything in the PHP file, even the closing tags. Can someone help me please? I’d really appreciate it.

https://code.sololearn.com/WGKTeL1GY69H/?ref=app

Answer 1

The result for a superhero that is found should be like this:

CAPTAIN AMERICA
AKA STEVE ROGERS

Recipient of the Super-soldier serum…