if http:// is in string then leave it, else if not add it

Question

I have a input that you enter a URL, i basically want to write some php that says if the domain containts \"http://\" then leave it be, else if not then add it to the beginn

Answer 1

Since the string starts with http://, strpos will return 0, which will evaluate to false.

Change the if statement to:

if(strpos($domain, "http://") !== FALSE){