PHP strpos() function returning incorrect result

Question

I am simply trying to see if a numeric year is contained inside a string of car years and models. I would think the following code should show $my_str as FALSE. But it return

Answer 1

You can't search for an INT inside a string using this function, you could convert the int to string before searching, like this:

$my_haystack = "2007 Cadillac CTS";
$my_needle = 1900;
$my_str = strpos($my_haystack, strval($my_needle));