validasi.php

<?php
  include("function.php");

    $id_pembayaran = $_GET['id_pembayaran'];

    if(validasi($id_pembayaran) > 0)
    {
      echo
  		"
  			<script>
  				alert('Berhasil di validasi');
  				document.location.href = 'daftar_pembayaran.php';
  			</script>
  		";
    }else {
      echo
  		"
  			<script>
  				alert('Gagal di validasi');
  				document.location.href = 'daftar_pembayaran.php';
  			</script>
  		";
    }