PHP Regex to Find Any Number at the Beginning of String

Question

I'm using PHP, and am hoping to be able to create a regex that finds and returns the street number portion of an address.

Example:

1234- South Blvd. Washington D.C., APT #306, ZIP45234

In the above example, only 1234 would be returned.

Seems like this should be incredibly simple, but I've yet to be successful. Any help would be greatly appreciated.

Answer 1

Try this:

$str = "1234- South Blvd. Washington D.C., APT #306, ZIP4523";
preg_match("~^(\d+)~", $str, $m);
var_dump($m[1]);

OUTPUT:

string(4) "1234"