put a http:// on a string if it does not contain it else disregard string in php

Question

i'm trying to put a http:// on a string if it does not contain it and then disregard the string if it already does the problem is it does not disregard the string if it does contain it, here is my code:

if(strpos($_POST['test-website'], "http://") === false || strpos($_POST['test-website'], "https://") === false){
    $url = "http://".$_POST['test-website'];
}else
    $url = $_POST['test-website'];

//Value: test.com
//Result: http://test.com

//Value: http://test.com
//Result: http://http://test.com

//Value: https://test.com
//Result: http://https://test.com

Answer 1

You should use === false instead of !== true, strpos will never return true.

if(strpos($_POST['test-website'], "http://") === false || strpos($_POST['test-website'], "https://") === false) {

Answer 2

strpos() Returns the position of where the needle exists relative to the beginning of the haystack string (independent of offset). Returns FALSE if the needle was not found.it wont return true.

if(strpos($_POST['test-website'], "http://") === false || strpos($_POST['test-website'], "https://") === false