Passing integer to php $_GET via url
问题 So I'm doing some CTF and one of the challenge is about php type juggling. The code looks something like this if($_GET['var1'] == hash('md4', $_GET['var1'])) { //print flag } So I was 80% sure that I need to pass in an integer so it'll be true but all I can manipulate is the url. I tried using python request to do it but still failed. import requests url = 'http://example.com' params = dict(var1=0) r = requests.get(url=url, params=params) Is there any special case where php will treat the