<?php
$regExp = '/\bH\d[A-Z][- ]?\d[A-Z]\d\b/i';
preg_match($regExp, "130 de la barre apt #1103 130de labarre, j4k1a4, H2X 1X8", $matches);
?>
PD9waHAKCiRyZWdFeHAgPSAnL1xiSFxkW0EtWl1bLSBdP1xkW0EtWl1cZFxiL2knOwpwcmVnX21hdGNoKCRyZWdFeHAsICIxMzAgZGUgbGEgYmFycmUgYXB0ICMxMTAzIDEzMGRlIGxhYmFycmUsIGo0azFhNCwgSDJYIDFYOCIsICRtYXRjaGVzKTsKcHJpbnRfcigkbWF0Y2hlcyk7Cgo/Pg==