sidak/admin/datang/edit_datang.php

<?php

    if(isset($_GET['kode'])){
        $sql_cek = "SELECT d.id_datang, d.id_pend, d.nik, d.nama_datang, d.jekel, d.tgl_datang, p.id_pend as id_pelapor, p.nama as nama_pelapor, pd.tgl_lh 
		FROM tb_datang d 
		INNER JOIN tb_pdd p ON d.pelapor=p.id_pend 
		LEFT JOIN tb_pdd pd ON d.id_pend=pd.id_pend 
		WHERE d.id_datang='".$_GET['kode']."'";
        $query_cek = mysqli_query($koneksi, $sql_cek);
        $data_cek = mysqli_fetch_array($query_cek,MYSQLI_BOTH);
    }
?>

<div class="card card-success">
	<div class="card-header">
		<h3 class="card-title">
			<i class="fa fa-edit"></i> Ubah Data</h3>
	</div>
	<form action="" method="post" enctype="multipart/form-data">
		<div class="card-body">

			<div class="form-group row">
				<label class="col-sm-2 col-form-label">No Sistem</label>
				<div class="col-sm-2">
					<input type="text" class="form-control" id="id_datang" name="id_datang" value="<?php echo $data_cek['id_datang']; ?>"
					 readonly/>
				</div>
			</div>

			<input type="hidden" id="id_pend" name="id_pend" value="<?php echo isset($data_cek['id_pend']) ? $data_cek['id_pend'] : ''; ?>">

			<div class="form-group row">
				<label class="col-sm-2 col-form-label">NIK</label>
				<div class="col-sm-6">
					<input type="text" class="form-control" value="<?php echo htmlspecialchars($data_cek['nik'], ENT_QUOTES); ?>" readonly>
					<input type="hidden" name="nik" value="<?php echo htmlspecialchars($data_cek['nik'], ENT_QUOTES); ?>">
				</div>
			</div>

			<div class="form-group row">
				<label class="col-sm-2 col-form-label">Nama</label>
				<div class="col-sm-6">
					<input type="text" class="form-control" value="<?php echo htmlspecialchars($data_cek['nama_datang'], ENT_QUOTES); ?>" readonly>
					<input type="hidden" name="nama_datang" value="<?php echo htmlspecialchars($data_cek['nama_datang'], ENT_QUOTES); ?>">
				</div>
			</div>

			<div class="form-group row">
				<label class="col-sm-2 col-form-label">Jenis Kelamin</label>
				<div class="col-sm-3">
					<input type="text" class="form-control" value="<?php 
						$display_jekel = $data_cek['jekel'];
						if ($display_jekel == 'LK') {
							$display_jekel = 'LAKI-LAKI';
						} elseif ($display_jekel == 'PR') {
							$display_jekel = 'PEREMPUAN';
						}
						echo htmlspecialchars($display_jekel, ENT_QUOTES);
					?>" readonly>
					<input type="hidden" name="jekel" value="<?php echo htmlspecialchars($data_cek['jekel'], ENT_QUOTES); ?>">
				</div>
			</div>

			<div class="form-group row">
				<label class="col-sm-2 col-form-label">Tgl Lahir</label>
				<div class="col-sm-3">
					<input type="text" class="form-control" value="<?php echo htmlspecialchars(isset($data_cek['tgl_lh']) ? $data_cek['tgl_lh'] : '-', ENT_QUOTES); ?>" readonly>
				</div>
			</div>

			<div class="form-group row">
				<label class="col-sm-2 col-form-label">Tgl Datang</label>
				<div class="col-sm-3">
					<input type="date" class="form-control" id="tgl_datang" name="tgl_datang" value="<?php echo htmlspecialchars($data_cek['tgl_datang'], ENT_QUOTES); ?>"
					 required>
				</div>
			</div>

			<div class="form-group row">
				<label class="col-sm-2 col-form-label">Pelapor</label>
				<div class="col-sm-6">
					<select name="pelapor" id="prlapor" class="form-control select2bs4" required>
						<option selected="">- Pilih -</option>
						<?php
                        // ambil data dari database
                        $query = "select * from tb_pdd where status='Ada'";
                        $hasil = mysqli_query($koneksi, $query);
                        while ($row = mysqli_fetch_array($hasil)) {
                        ?>
						<option value="<?php echo $row['id_pend'] ?>" <?=$data_cek['id_pelapor']==$row['id_pend'] ? "selected" : null ?>>
							<?php echo htmlspecialchars($row['nik'], ENT_QUOTES); ?>
							-
							<?php echo htmlspecialchars($row['nama'], ENT_QUOTES); ?>
						</option>
						<?php
                        }
                        ?>
					</select>
				</div>
			</div>


		</div>
		<div class="card-footer">
			<input type="submit" name="Ubah" value="Simpan" class="btn btn-success">
			<a href="?page=data-datang" title="Kembali" class="btn btn-secondary">Batal</a>
		</div>
	</form>
</div>

<?php

    if (isset ($_POST['Ubah'])){
    // Sanitize Input to prevent SQL Injection & Syntax Errors
    $id_datang = (int)$_POST['id_datang'];
    $nik = mysqli_real_escape_string($koneksi, trim($_POST['nik']));
    $nama_datang = mysqli_real_escape_string($koneksi, trim($_POST['nama_datang']));
    $jekel = mysqli_real_escape_string($koneksi, trim($_POST['jekel']));

    $tgl_datang = mysqli_real_escape_string($koneksi, trim($_POST['tgl_datang']));
    $pelapor = (int)$_POST['pelapor'];
    
    // Update tb_datang table
    $sql_ubah = "UPDATE tb_datang SET 
		nik='$nik',
		nama_datang='$nama_datang',
		jekel='$jekel',
		tgl_datang='$tgl_datang',
		pelapor='$pelapor'
		WHERE id_datang='$id_datang'";
    $query_ubah = mysqli_query($koneksi, $sql_ubah);
    

    
    mysqli_close($koneksi);

    if ($query_ubah) {
        echo "<script>
      Swal.fire({title: 'Ubah Data Berhasil',text: '',icon: 'success',confirmButtonText: 'OK'
      }).then((result) => {if (result.value)
        {window.location = 'index.php?page=data-datang';
        }
      })</script>";
      }else{
      echo "<script>
      Swal.fire({title: 'Ubah Data Gagal',text: '',icon: 'error',confirmButtonText: 'OK'
      }).then((result) => {if (result.value)
        {window.location = 'index.php?page=data-datang';
        }
      })</script>";
    }}