WooCommerce:检查产品是否缺货并且不允许延期交货

问题描述：

如何检查产品是否缺货(库存数量为 0)且不允许延期交货?以下代码由于某种原因不起作用.

How do I check if a product is out of stock (stock quantity 0) and doesn't allow backorders? The following code doesn't work for some reason.

add_action('woocommerce_before_add_to_cart_button','show_stock_single');
function show_stock_single() {
  global $product;
  if($product->get_stock_quantity()<1) {
    if($product->backorders_allowed()) echo '<p>Backorders allowed</p>';
    else echo '<p>Backorders not allowed</p>';
  }
  else echo '<p>Available</p>';
}

对于允许延期交货的产品，它显示允许延期交货"，但如果不允许延期交货，则不显示任何内容.为什么?

It shows "backorders allowed" for products that allow backorders, but nothing if backorders are not allowed. Why?

答

每当我得到一个没有按照我认为应该做的 if 语句时，我尝试的第一件事就是反转它，所以试一试...

Whenever I get an if statement that's not doing as I think it should, the first thing I try is to reverse it, so give this a go...

if($product->get_stock_quantity()>0) {
    echo '<p>Available</p>';
} else {
    if($product->backorders_allowed()) { 
        echo '<p>Backorders allowed</p>';
    } else {
        echo '<p>Backorders not allowed</p>';
    }
}

- 我还要确保您将各种 if 位与 {...} 括号括起来.我知道 PHP 应该允许更宽松的单行 ifs 要求，但这可能是原因！

- I'd also make sure you're enclosing the various if bits with the {...} brackets. I know PHP is supposed to allow a more relaxed requirement with single line ifs, but it might be the cause!

WooCommerce:检查产品是否缺货并且不允许延期交货

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