Question

这是我的示例数组$ postcodeSuppliers：

Array
(
    [0] => AB123
    [postcode] => AB123
    [1] => TEST
    [supplier_1] => TEST
    [2] =>  
    [supplier_2] =>  
    [3] =>  
    [supplier_3] =>  
)

我一直在努力确认供应商是否为空。这是我一直用于此的代码：

function generateQuoteSuppliers($postcodeSuppliers) {

    $quoteSupplier = array("supplier_1", "supplier_2", "supplier_3");
    //print("<pre>");
    //print_r($postcodeSuppliers);
    //print("</pre>");

    for ($i = 1; $i < 4; $i++) {
        $supplier = $postcodeSuppliers['supplier_' . $i . ''];
        //if ($supplier == '')
        //if (!isset($supplier))
        if (empty($supplier)) {
            //A fake supplier is added here 'FAKE' if any of the 3 suppliers contain no date
            echo "NO SUPPLIER";
            $quoteSupplier['supplier_' . $i . ''] = array
                (
                'supplier' => 'FAKE',
                'price' => 0
            );
        } else {
            $quoteSupplier['supplier_' . $i . ''] = array
                (
                'supplier' => $postcodeSuppliers['supplier_' . $i . ''],
                'price' => 0
            );
        }
    }

    return $quoteSupplier;
}

我用来检查值是否为空的方法都没有。我明白了：

Array
(
    [0] => supplier_1
    [1] => supplier_2
    [2] => supplier_3
    [supplier_1] => Array
        (
            [supplier] => TEST
            [price] => 0
        )

    [supplier_2] => Array
        (
            [supplier] =>  
            [price] => 0
        )

    [supplier_3] => Array
        (
            [supplier] =>  
            [price] => 0
        )

)

当我期待这个时：

Array
(
    [0] => supplier_1
    [1] => supplier_2
    [2] => supplier_3
    [supplier_1] => Array
        (
            [supplier] => TEST
            [price] => 0
        )

    [supplier_2] => Array
        (
            [supplier] => FAKE
            [price] => 0
        )

    [supplier_3] => Array
        (
            [supplier] => FAKE 
            [price] => 0
        )

)

有人能告诉我出错的地方吗？我完全乐于接受我错的事实！或者错误地使用我的数组。

Answer 1

您可以使用语言构造函数isset()

Answer 2

在将trim()传递给$supplier

之前尝试使用empty()

PHP数组值 - 我需要知道它们是否是空的

2 个答案: