php - fatal error : Uncaught Error: Unsupported operand types

Question

我需要你的帮助。我收到有关“不支持的操作数类型”的错误，但我不知道。我一直在尝试在谷歌上搜索，但仍然无法修复它。

这是我的错误标题:

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

这是第 28 行的代码:$halaman= ceil($jum/$per_hal);

这是我的代码:

<?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){	
		?>	
		<script>
			$(document).ready(function(){
				$('#pesan_sedia').css("color","red");
				$('#pesan_sedia').append("<span class='glyphicon glyphicon-asterisk'></span>");
			});
		</script>
		<?php
		echo "<div style='padding:5px' class='alert alert-warning'><span class='glyphicon glyphicon-info-sign'></span> Stok  <a style='color:red'>". $q['nama']."</a> yang tersisa sudah kurang dari 3 . silahkan pesan lagi !!</div>";	
	}
}
?>
<?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;
?>
<div class="col-md-12">
	<table class="col-md-2">
		<tr>
			<td>Jumlah Record</td>		
			<td><?php echo $jum; ?></td>
		</tr>
		<tr>
			<td>Jumlah Halaman</td>	
			<td><?php echo $halaman; ?></td>
		</tr>
	</table>
	<a style="margin-bottom:10px" href="lap_barang.php" target="_blank" class="btn btn-default pull-right"><span class='glyphicon glyphicon-print'></span>  Cetak</a>
</div>
<form action="cari_act.php" method="get">
	<div class="input-group col-md-5 col-md-offset-7">
		<span class="input-group-addon" id="basic-addon1"><span class="glyphicon glyphicon-search"></span></span>
		<input type="text" class="form-control" placeholder="Cari barang di sini .." aria-describedby="basic-addon1" name="cari">	
	</div>
</form>
<br/>
<table class="table table-hover">
	<tr>
		<th class="col-md-1">No</th>
		<th class="col-md-4">Nama Barang</th>
		<th class="col-md-3">Harga Jual</th>
		<th class="col-md-1">Jumlah</th>
		<!-- <th class="col-md-1">Sisa</th>		 -->
		<th class="col-md-3">Opsi</th>
	</tr>
	<?php 
	if(isset($_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 -->
<div id="myModal" class="modal fade">
	<div class="modal-dialog">
		<div class="modal-content">
			<div class="modal-header">
				<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
				<h4 class="modal-title">Tambah Barang Baru</h4>
			</div>
			<div class="modal-body">
				<form action="tmb_brg_act.php" method="post">
					<div class="form-group">
						<label>Nama Barang</label>
						<input name="nama" type="text" class="form-control" placeholder="Nama Barang ..">
					</div>
					<div class="form-group">
						<label>Jenis</label>
						<input name="jenis" type="text" class="form-control" placeholder="Jenis Barang ..">
					</div>
					<div class="form-group">
						<label>Suplier</label>
						<input name="suplier" type="text" class="form-control" placeholder="Suplier ..">
					</div>
					<div class="form-group">
						<label>Harga Modal</label>
						<input name="modal" type="text" class="form-control" placeholder="Modal per unit">
					</div>	
					<div class="form-group">
						<label>Harga Jual</label>
						<input name="harga" type="text" class="form-control" placeholder="Harga Jual per unit">
					</div>	
					<div class="form-group">
						<label>Jumlah</label>
						<input name="jumlah" type="text" class="form-control" placeholder="Jumlah">
					</div>																	

				</div>
				<div class="modal-footer">
					<button type="button" class="btn btn-default" data-dismiss="modal">Batal</button>
					<input type="submit" class="btn btn-primary" value="Simpan">
				</div>
			</form>
		</div>
	</div>
</div>



<?php 
include 'footer.php';

?>

我希望你能帮助我..非常感谢。

Answer 1

在第 28 行，您以数组形式获取结果(请参阅文档 mysqli_fetch_array )

$jum=mysqli_fetch_array($jumlah_record); 所以$jum是数组并且不能被分割

你可以试试这个:

$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); 已替换为 $halaman= ceil($jum['number']/$per_hal); 为获取查询返回的值