<?php
$sayi1="9223372036854775807";
$sayi2="0000000000000000035";
$son2karakter=substr($sayi1,strlen($sayi1)-2);
$sonuc=$son2karakter+$sayi2;
echo substr($sayi1,0,strlen($sayi1)-2).$sonuc;
?>

@kocaxx
Hesap numaramı yolliyim mi