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Copy pathkembali.php
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kembali.php
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<?php
if($_GET['id']){
include "koneksi.php";
$id_peminjaman_buku=$_GET['id'];
$cek_terlambat=mysqli_query($conn, "select * from peminjaman_buku1 where id_peminjaman_buku = '".$id_peminjaman_buku."'");
$dt_pinjam=mysqli_fetch_array($cek_terlambat);
if(strtotime($dt_pinjam['tanggal_kembali'])>=strtotime(date('Y-m-d'))) {
$denda=0;
} else {
$harga_denda_perhari=5000;
$tanggal_kembali = new DateTime ();
$tgl_harus_kembali = new DateTime(dt_pinjam['tanggal_kembali']);
$selisih_hari=$tanggal_kembali->diff($tgl_harus_kembali)->d;
$denda=$selisih_hari*$harga_denda_perhari;
}
mysqli_query($conn, "insert into pengembalian_buku1 (id_peminjaman_buku, tanggal_pengembalian,denda)value('".$id_peminjaman_buku."','".date('Y-m-d')."','".$denda."')");
header('location: histori_peminjaman.php');
}
?>