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

That is because strpos will return the location of the string, within the string. In your url, that is 0. Which equals to false. Make it a strict check - add === false.