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

you forgot to return $domain.

$domain = $_POST["domain"];

if (strpos($domain, "http://") !== false) {
return $domain;
} else {
return "http://" . $domain;
}