Extract mobile numbers

gistfile1.php

foreach($vCard as $vCardPart) {
    if(isset($vCardPart->n[0]['FirstName']) && isset($vCardPart->tel[0]['Value'])) {
        $number = $vCardPart->tel[0]['Value'];
        $number = str_replace("-","",$number);
        $number = str_replace("00353","0",$number);
        $number = str_replace("+353","0",$number);
        if(
            substr($number,0,3) == "086" ||
            substr($number,0,3) == "087" ||
            substr($number,0,3) == "083" ||
            substr($number,0,3) == "085" ||
            substr($number,0,3) == "089"
        ) {
            $firstname = $vCardPart->n[0]['FirstName'];
            echo($firstname . ": ");
            echo($number);
            echo("\n");
        }
    }
}