Fatal error: Uncaught Error: Unsupported operand types

I need your help please. I got an error about "Unsupported operand types" but i didn't know about it. i've been trying search on google but i'm still can't fix it.

this my error title :

Fatal error: Uncaught Error: Unsupported operand types in
/Applications/XAMPP/xamppfiles/htdocs/aplikasi_penjualan/admin/barang.php:28
Stack trace: #0 {main} thrown in
/Applications/XAMPP/xamppfiles/htdocs/aplikasi_penjualan/admin/barang.php
on line 28

This is code at line 28 : $halaman= ceil($jum / $per_hal);

$halaman= ceil($jum / $per_hal);

and this my code :

<?php include 'header.php'; ?>

<h3><span class="glyphicon glyphicon-briefcase"></span> Data Barang</h3>
<button style="margin-bottom:20px" data-toggle="modal" data-target="#myModal" class="btn btn-info col-md-2"><span class="glyphicon glyphicon-plus"></span>Tambah Barang</button>
<br/>
<br/>

<?php
$periksa=mysqli_query($conn, "select * from barang where jumlah <=3");
while($q=mysqli_fetch_array($periksa)){
if($q['jumlah']<=3){
?>

$(document).ready(function(){
$('#pesan_sedia').css("color","red");
$('#pesan_sedia').append("");
});

<?php
echo "

Stok ". $q['nama']." yang tersisa sudah kurang dari 3 . silahkan pesan lagi !!

";
}
}
?>
<?php
$per_hal=10;
$jumlah_record=mysqli_query($conn, "SELECT COUNT(*) from barang");
$jum=mysqli_fetch_array($jumlah_record);
$halaman= ceil($jum / $per_hal); //-----> THE ERROR IN HERE
$page = (isset($_GET['page'])) ? (int)$_GET['page'] : 1;
$start = ($page - 1) * $per_hal;
?>

Jumlah Record
Jumlah Halaman

Cetak

<form action="cari_act.php" method="get">

</form>
<br/>
<table class="table table-hover">
<tr>
<th class="col-md-1">No</th>
<th class="col-md-4">Nama Barang</th>
<th class="col-md-3">Harga Jual</th>
<th class="col-md-1">Jumlah</th>
<!-- <th class="col-md-1">Sisa</th> -->
<th class="col-md-3">Opsi</th>
</tr>
<?php
if(isset($_GET['cari'])){
$cari=mysqli_real_escape_string($_GET['cari']);
$brg=mysqli_query($conn, "select * from barang where nama like '$cari' or jenis like '$cari'");
}else{
$brg=mysqli_query($conn, "select * from barang limit $start, $per_hal");
}
$no=1;
while($b=mysqli_fetch_array($brg)){

?>
<tr>
<td><?php echo $no++ ?></td>
<td><?php echo $b['nama'] ?></td>
<td>Rp.<?php echo number_format($b['harga']) ?>,-</td>
<td><?php echo $b['jumlah'] ?></td>
<td>
<a href="det_barang.php?id=<?php echo $b['id']; ?>" class="btn btn-info">Detail</a>
<a href="edit.php?id=<?php echo $b['id']; ?>" class="btn btn-warning">Edit</a>
<a onclick="if(confirm('Apakah anda yakin ingin menghapus data ini ??')){ location.href='hapus.php?id=<?php echo $b['id']; ?>' }" class="btn btn-danger">Hapus</a>
</td>
</tr>
<?php
}
?>
<tr>
<td colspan="4">Total Modal</td>
<td>
<?php

$x=mysqli_query($conn, "select sum(modal) as total from barang");
$xx=mysqli_fetch_array($x);
echo "<b> Rp.". number_format($xx['total']).",-</b>";
?>
</td>
</tr>
</table>
<ul class="pagination">
<?php
for($x=1;$x<=$halaman;$x++){
?>
<li><a href="?page=<?php echo $x ?>"><?php echo $x ?></a></li>
<?php
}
?>
</ul>
<!-- modal input -->







×

Tambah Barang Baru

Nama Barang

Jenis

Suplier

Harga Modal

Harga Jual

Jumlah

</div>

Batal

</form>
</div>
</div>
</div>



<?php
include 'footer.php';

?>

I Hope you can help me.. Thanks a lot.

If either of $jum or $per_hal is not a number you likely get an error, so are they both of type number?
– LGSon
Jun 29 at 9:15

$jum

$per_hal

@LGSon yes, they both is a number.
– M. Putra Nur Rahman
Jun 29 at 9:17

But mysqli_fetch_array returns an array. So $jum must be an array.
– TiiJ7
Jun 29 at 9:19

mysqli_fetch_array

$jum

$jum = mysqli_fetch_array() => it is not an int but an array. see the doc : php.net/manual/mysqli-result.fetch-array.php
– ᴄʀᴏᴢᴇᴛ
Jun 29 at 9:19

$jum = mysqli_fetch_array()

1 Answer
1

On line 28, you fetch the result as an array (see the doc for mysqli_fetch_array )

mysqli_fetch_array

$jum=mysqli_fetch_array($jumlah_record); so $jum is array and cannot be divided

$jum=mysqli_fetch_array($jumlah_record);

$jum

You can try this :

$per_hal=10;
$jumlah_record=mysqli_query($conn, "SELECT COUNT(*) as number from barang");
$jum=mysqli_fetch_array($jumlah_record);
$halaman= ceil($jum['number'] / $per_hal);


$halaman= ceil($jum / $per_hal); was replaced by $halaman= ceil($jum['number'] / $per_hal); to get the value returned by the query

$halaman= ceil($jum / $per_hal);

$halaman= ceil($jum['number'] / $per_hal);

it's work.. alhamdulillah thank's.. but i get a new error. about conversion array to string.. at line 36. this is the code at line 36 : <td><?php echo $jum; ?></td> this is the error : Notice: Array to string conversion in /Applications/XAMPP/xamppfiles/htdocs/aplikasi_penjualan/admin/barang.php on line 36 Array ....... how to fix it?
– M. Putra Nur Rahman
Jun 29 at 9:42

<td><?php echo $jum; ?> should be <td><?php echo $jum['number']; ?> or <td><?php print_r($jum); ?>
– Olexander Pobuta
Jun 29 at 9:48

<td><?php echo $jum; ?>

<td><?php echo $jum['number']; ?>

<td><?php print_r($jum); ?>

alhamdulillah thanks bro. It's work!!..
– M. Putra Nur Rahman
Jun 29 at 9:52

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