这是我更新的代码，当我转到phpmyadmin时，我添加的所有数据都被记录下来，但是当我转到实际页面时，它仅显示一行数据。我认为我的错误来自$ sql或num_rows。这是我更新的代码，当我转到phpmyadmin时，会记录我添加的所有数据，但是当我转到实际页面时，它仅显示一行数据。我认为我的错误来自$ sql或num_rows。
<tbody>
<?php
$sql = "SELECT tbl_items.id, tbl_items.prod_name,
tbl_items.cat_name, tbl_items.prod_desc, tbl_items.prod_reorder_lvl AS
reorder_lvl, tbl_items.prod_price, tbl_inventory.qty AS qty FROM tbl_items
join tbl_inventory ON tbl_items.prod_name = tbl_inventory.prod_name join
tbl_cat ON tbl_items.cat_name = tbl_cat.cat_name";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$id = $row['id'];
$prod_name = $row['prod_name'];
$prod_desc = $row['prod_desc'];
$cat_name = $row['cat_name'];
$reorder_lvl = $row['reorder_lvl'];
$qty = $row['qty'];
$prod_price = $row['prod_price'];
if($qty == 0){
$alert = "<div class='alert text-danger'>
<strong>$qty</strong> No Stock
</div>";
}else if($reorder_lvl >= $qty){
$alert = "<div class='alert text-warning'>
<strong>$qty</strong> (Re-order)
</div>";
}else {
$alert = $qty;
}
?>
<tr>
<td>
<?php echo $prod_name; ?>
</td>
<td>
<?php echo $prod_desc; ?>
</td>
<td>
<?php echo $cat_name; ?>
</td>
<td>
<?php echo $alert; ?>
</td>
<td>
<?php echo $reorder_lvl; ?>
</td>
<td>
₱<?php echo $prod_price; ?>
</td>
<td><div class="dropdown">
<button class="btn btn-primary dropdown-toggle btn-sm" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Action
</button>
<div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
<a class="dropdown-item small" href="#add<?php echo $id;?>" data-toggle="modal">Stock In</a>
<a class="dropdown-item small" href="#edit<?php echo $id;?>" data-toggle="modal">Update</a>
<a class="dropdown-item small" href="#delete<?php echo $id;?>" data-toggle="modal">Delete</a>
</div>
</div></td>
<!-- In Stock Modal HTML -->
<div id="add<?php echo $id; ?>" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<form method="post">
<div class="modal-header">
<h4 class="modal-title font-weight-light">Add Stock</h4>
<button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
</div>
<div class="modal-body font-weight-normal">
<div class="form-group">
<label>Name</label>
<input type="hidden" name="add_stocks_id" value="<?php echo $id; ?>">
<input type="text" class="form-control" id="prod_name" name="prod_name" required readonly value="<?php echo $prod_name; ?>">
</div>
<div class="form-group">
<label>Quantity:</label>
<input type="number" class="form-control" id="quantity" name="quantity" autocomplete="off" required min="1" autofocus>
</div>
<div class="modal-footer">
<input type="button" class="btn btn-default" data-dismiss="modal" value="Cancel">
<input type="submit" class="btn btn-primary" name="add_inventory" value="Add">
</div>
</div>
</form>
</div>
</div>
</div>
<!-- Edit Modal HTML -->
<div id="edit<?php echo $id; ?>" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<form method="post">
<div class="modal-header">
<h4 class="modal-title font-weight-light">Update Product</h4>
</div>
<div class="modal-body font-weight-normal">
<input type="hidden" name="edit_prod_id" value="<?php echo $id; ?>">
<div class="row">
<div class="col-md-12">
<div class="form-group">
<label>Name</label>
<input type="text" class="form-control" id="prod_name" name="prod_name" value="<?php echo $prod_name; ?>" autocomplete="off" required>
</div>
<div class="form-group">
<label>Descripion</label>
<input class="form-control" id="prod_desc" name="prod_desc" value="<?php echo $prod_desc; ?>" autocomplete="off" required>
</div>
<div class="form-group">
<label>Category</label>
<select class="form-control" id="cat_name" name="cat_name" autocomplete="off" required>
<?php
$sql = "SELECT cat_name FROM tbl_cat";
$result = $conn->query($sql);
while($row = $result->fetch_assoc()) {
?>
<option value="<?php echo $row["cat_name"]; ?>"><?php echo $row["cat_name"]; ?></option>
<?php }?>
</select>
</div>
<div class="form-group">
<label>Price</label>
<input type="number" class="form-control" id="prod_price" name="prod_price" value="<?php echo $prod_price; ?>" autocomplete="off" required>
</div>
<div class="form-group">
<label>Re-order Level</label>
<input type="number" class="form-control" id="prod_reorder_lvl" name="prod_reorder_lvl" value="<?php echo $reorder_lvl; ?>" autocomplete="off" required>
</div>
</div>
</div>
</div>
<div class="modal-footer">
<input type="button" class="btn btn-default" data-dismiss="modal" value="Cancel">
<input type="submit" class="btn btn-primary" name="update_item" value="Save">
</div>
</form>
</div>
</div>
</div>
<!-- Delete Modal HTML -->
<div id="delete<?php echo $id; ?>" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<form method="post">
<div class="modal-header">
<h4 class="modal-title font-weight-light">Delete Product</h4>
<button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
</div>
<div class="modal-body font-weight-normal">
<input type="hidden" name="delete_id" value="<?php echo $id; ?>">
<p>Are you sure you want to delete this?</p>
<p><small>This action cannot be undone.</small></p>
</div>
<div class="modal-footer">
<input type="button" class="btn btn-default" data-dismiss="modal" value="Cancel">
<input type="submit" name="delete" class="btn btn-danger" value="Delete" autofocus>
</div>
</form>
</div>
</div>
</tr>
<?php
}
if(isset($_POST['update_item'])){
$edit_prod_id = $_POST['edit_prod_id'];
$prod_name = $_POST['prod_name'];
$prod_desc = $_POST['prod_desc'];
$cat_name = $_POST['cat_name'];
$prod_reorder_lvl = $_POST['prod_reorder_lvl'];
$prod_price = $_POST['prod_price'];
$sql = "UPDATE tbl_items SET
prod_name='$prod_name',
prod_desc='$prod_desc',
cat_name='$cat_name',
prod_reorder_lvl='$prod_reorder_lvl',
prod_price='$prod_price'
WHERE id ='$edit_prod_id'";
if ($conn->query($sql) === TRUE) {
$update_inventory_query = "UPDATE tbl_inventory SET
prod_name='$prod_name'
WHERE id ='$edit_prod_id'";
if ($conn->query($update_inventory_query) === TRUE) {
echo '<script>window.location.href="product.php"</script>';
} else {
echo "Error updating record: " . $conn->error;
}
} else {
echo "Error updating record: " . $conn->error;
}
}
if(isset($_POST['delete'])){
$delete_id = $_POST['delete_id'];
$sql = "DELETE FROM tbl_items WHERE id='$delete_id'";
if ($conn->query($sql) === TRUE) {
$sql = "DELETE FROM tbl_inventory WHERE id='$delete_id'";
if ($conn->query($sql) === TRUE) {
$sql = "DELETE FROM tbl_inventory WHERE id='$delete_id'";
echo '<script>window.location.href="product.php"</script>';
} else {
echo "Error deleting record: " . $conn->error;
}
} else {
echo "Error deleting record: " . $conn->error;
}
}
}
if(isset($_POST['add_item'])){
$prod_name = $_POST['prod_name'];
$prod_desc = $_POST['prod_desc'];
$cat_name = $_POST['cat_name'];
$prod_reorder_lvl = $_POST['prod_reorder_lvl'];
$prod_price = $_POST['prod_price'];
$sql = "INSERT INTO tbl_items (prod_name,prod_desc,cat_name,prod_reorder_lvl,prod_price,prod_date) VALUES ('$prod_name','$prod_desc','$cat_name','$prod_reorder_lvl','$prod_price','$date')";
if ($conn->query($sql) === TRUE) {
$add_inventory_query = "INSERT INTO tbl_inventory(prod_name,qty,date) VALUES ('$prod_name','0','$date')";
if ($conn->query($add_inventory_query) === TRUE) {
echo '<script>window.location.href="product.php"</script>';
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
}
if(isset($_POST['add_inventory'])){
$add_stocks_id = clean($_POST['add_stocks_id']);
$quantity = clean($_POST['quantity']);
$sql = "INSERT INTO tbl_issuance (prod_name,qty,date) VALUES ('$prod_name','$quantity','$date_time')";
if ($conn->query($sql) === TRUE) {
$add_inv = "UPDATE tbl_inventory SET qty = (qty + '$quantity') WHERE id = '$add_stocks_id'";
if ($conn->query($add_inv) === TRUE) {
echo '<script>window.location.href="product.php"</script>';
} else {
echo "Error updating record: " . $conn->error;
}
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
}
?>
</tbody>
答案 0 :(得分：0)
您的tr甚至没有在while循环中设置。
while($row = $result->fetch_assoc()) {
$id = $row['id'];
$prod_name = $row['prod_name'];
$prod_desc = $row['prod_desc'];
$cat_name = $row['cat_name'];
$reorder_lvl = $row['reorder_lvl'];
$qty = $row['qty'];
$prod_price = $row['prod_price'];
if($qty == 0){
$alert = "<div class='alert text-danger'>
<strong>$qty</strong> No Stock
</div>";
}else if($reorder_lvl >= $qty){
$alert = "<div class='alert text-warning'>
<strong>$qty</strong> (Re-order)
</div>";
}else {
$alert = $qty;
}
echo "<tr><td>".$prod_name."</td>";
echo "<td>".$prod_desc."</td>";
echo "<td>".$cat_name."</td>";
echo "<td>".$alert."</td>";
echo "<td>".$reorder_lvl."</td>";
echo "<td>".$prod_price."</td></tr>";
} // close while loop