我設(shè)法使用下拉數(shù)量菜單更改我的購物車中一種產(chǎn)品的數(shù)量，但是this.form.submit()如果我在購物車中有兩種具有更新數(shù)量的產(chǎn)品并且我決定再次更新其中一種，另一種產(chǎn)品的數(shù)量將被覆蓋并且恢復(fù)到其之前的原始值（更新前），該值是使用列出所有產(chǎn)品的頁面上的“添加到購物車”發(fā)送的。當我更新一個產(chǎn)品的數(shù)量時，如何保留其他產(chǎn)品已經(jīng)更新的數(shù)量？<?php// Add products to basket:if (!isset($_SESSION['basket'])) { $_SESSION['basket'] = array();}if (isset($_POST['id'])) { $_SESSION['basket'][$_POST['id']] = array( 'product_id'=>$_POST['id'], 'product_photo'=>$_POST['hidden_photo'], 'product_photo_alt'=>$_POST['hidden_photo_alt'], 'product_name'=>$_POST['hidden_name'], 'product_price'=>$_POST['hidden_price'], 'product_quantity'=>$_POST['quantity'], );}?><?php// if(!empty($_SESSION['basket'])) { $total = 0; foreach ($_SESSION['basket'] as $key => $value) {// Below is the code which updates the quantity of a product with a particular id// But after submitting the form resetes the quantity of other products // With already updated quantity if (!empty($_POST['new_qty'][$value['product_id']])) { $quantity = $_POST['new_qty'][$value['product_id']]; } else { $quantity = $value['product_quantity']; }?><form method="post" action=""><select class="quantity-basket" name="new_qty[<?php echo $value['product_id']; ?>]" onchange="this.form.submit()"><?php// Quantity added to the basket: if ($quantity) {?><option value="<?php echo $quantity; ?>" hidden><?php echo $quantity; ?></option><?php}?><?php// Drop-down quantity menufor ($i = 0; $i <=50; $i++) {?><option value="<?php echo ($i == 0) ? $i . ' (Remove)' : $i; ?>"><?php echo ($i == 0) ? $i . ' (Remove)' : $i; ?></option><?php}?></select><!-- End of quantity drop-down menu --></form>
1 回答
湖上湖
TA貢獻2003條經(jīng)驗 獲得超2個贊
<?php
if (!isset($_SESSION['basket'])) {
? $_SESSION['basket'] = array();
}
if (isset($_POST['id'])) {
? $_SESSION['basket'][$_POST['id']] = array(
? ? 'product_id'=>$_POST['id'],
? ? 'product_photo'=>$_POST['hidden_photo'],
? ? 'product_photo_alt'=>$_POST['hidden_photo_alt'],
? ? 'product_name'=>$_POST['hidden_name'],
? ? 'product_price'=>$_POST['hidden_price'],
? ? 'product_quantity'=>$_POST['quantity'],
? );
}
// Update quantity
if (isset($_POST['action']) && $_POST['action'] == 'update') {
? foreach($_SESSION['basket'] as &$value) {
? ? if($value['product_id'] === $_POST['type']) {
? ? ? ? $value['product_quantity'] = $_POST['new_qty'];
? ? ? ? break; // Stop the loop after we've found the product
? ? }
? }
}
?>
<?php
//?
?if(!empty($_SESSION['basket'])) {
? ?$total = 0;
? ?foreach ($_SESSION['basket'] as $product) {
?>
<form method="post" action="">
<input type="hidden" name="type" value='<?php echo $product["product_id"]; ?>'>
<input type="hidden" name="action" value="update">
<select class="quantity-basket" name="new_qty" onchange="this.form.submit()">
<option value="<?php echo $product['product_quantity']; ?>" hidden><?php echo $product['product_quantity']; ?></option>
<?php
// Drop-down quantity menu
for ($i = 0; $i <=50; $i++) {
?>
<option value="<?php echo ($i == 0) ? $i . ' (Remove)' : $i; ?>">
<?php echo ($i == 0) ? $i . ' (Remove)' : $i; ?>
</option>
<?php
}
?>
</select>
</form>
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