[英]PHP/MySQL - creating a multidimensional array
這是我的代碼:
<?php
if ($result->num_rows > 0) {
$total = 0; // used for displaying the total price at the bottom
$_SESSION['foodname'] = array();
while ($row = $result->fetch_assoc()) {
?>
<tbody>
<tr>
<td data-th="Product">
<div class="row">
<div class="col-sm-2 hidden-xs"><br><img src="../images/food/<?php
echo $row['food_img'];
?>" alt="" class="img-responsive" width="100%"/></div>
<div class="col-sm-10">
<h4 style="margin-left:20px;"><br><?php
echo $row['food_name'];
?></h4>
</div>
</div>
</td>
<td data-th="Price"><br>Rs. <?php
$price = $row['price'];
echo $price;
?></td>
<form action="" method="POST">
<td data-th="Quantity"><br>
<input type="number" name="quantity" class="form-control text-center" value="<?php
$fquantity = $row['food_quantity'];
echo $fquantity;
?>" min="1" max="<?php
echo $row['quantity'];
?>">
</td>
<td data-th="Subtotal" class="text-center"><?php
$sub_total = ($price * $fquantity);
echo '<br>$ ' . $sub_total;
$total = $total + $sub_total;
?>
</td>
<td class="actions">
<br><input type="submit" class="btn btn-info btn-sm" value="Update Quantity" name="update">
<a class="btn btn-danger btn-sm" href="../CRUD/delete.php?id=<?php
echo $row['food_id'];
?>&q=<?php
echo $fquantity;
?>">Remove Item</a>
</td>
</form>
</tr>
</tbody>
<?php
$_SESSION['foodname'] = array(
"name" => $row['food_name'],
"price" => $row['price']
);
}
print_r($_SESSION['foodname']); // PRINTING ONLY LAST VALUE
}
?>
您可以清楚地看到,以下代碼行是在while循環內編寫的,但是我只能看到有關最后一個數據項的詳細信息。
$_SESSION['foodname'] = array("name" => $row['food_name'], "price" => $row['price']);
我從根本上做錯了什么嗎?
問題在於您在循環內設置$_SESSION
的方式。 每次執行循環時,您都將覆蓋。 使它們成為數組,應該可以工作:
//-------------------▾▾
$_SESSION['foodname'][] = array(
"name" => $row['food_name'],
"price" => $row['price']
);
請注意, []
后$_SESSION['foodname']
更改這部分代碼
<?php
$_SESSION['foodname'] = array(
"name" => $row['food_name'],
"price" => $row['price']
);
}
print_r($_SESSION['foodname']); // PRINTING ONLY LAST VALUE
}
?>
與這個
<?php
$food = array(
"name" => $row['food_name'],
"price" => $row['price']
);
array_push($_SESSION['foodname'],$food);
}
print_r($_SESSION['foodname']); // PRINTING ONLY LAST VALUE
}
?>
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