Question

“嗨，我在这里遇到问题，我想知道如果我想在数量低于或等于0时设置按钮，我可以在此代码中添加条件。我输入以下代码。谢谢希望你能帮助我。“

<?php
$results = $mysqli->query("SELECT product_code, product_name, product_desc, product_img_name, QtyOnHand, product_price FROM allitems where id <= 4");
if($results){
$products_item = '<ul class="products">';
while($obj = $results->fetch_object())
{
$products_item .= <<<EOT
<li class="product">
<form method="post" action="../../cart_update.php">
<div class="product-content"><h3>{$obj->product_name}</h3>
<div class="product-thumb"><img src="../../images/{$obj->product_img_name}" class="img"></div>
<div class="product-info">
Price {$currency}{$obj->product_price}
<fieldset>
<label>
Quantity Left: {$obj-> QtyOnHand}<br>
<span>Quantity</span>
<input type="text" size="2" maxlength="2" name="product_qty" value="1" />
</label>
</fieldset>
<input type="hidden" name="product_code" value="{$obj->product_code}" />
<input type="hidden" name="type" value="add" />
<input type="hidden" name="return_url" value="{$current_url}" />
<div align="center">
<div align="center">
<button type="submit" class="add_to_cart" name="add_button" >Add</button></div>
</div></div>
</form>
</li>
EOT;
}
$products_item .= '</ul>';
echo $products_item;
}
?>

Answer 1

您可以使用以下内容：

<input type="text" size="2" maxlength="2" {if($obj->QtyOnHand<1, 'disabled="disabled"')} name="product_qty" value="1" />

购物车的{php}代码

1 个答案: