php从数组中删除特定值

我有一个数组

$products

，看起来像这样

Array
(
    [services] => Array
        (
            [0] => Array
                (
                    [id] => 1
                    [icon] => bus.png
                    [name] => Web Development
                    [cost] => 500
                )

            [1] => Array
                (
                    [id] => 4
                    [icon] => icon.png
                    [name] => Icon design
                    [cost] => 300
                )

        )

)

我试图删除与

[id]=>1

匹配的数组部分，为此我使用以下代码

$key = array_search('1', $products);
unset($products['services'][$key]);

然而，它不工作，我也没有得到任何错误。

---

我做错了什么？

这应该适合您：

$key = array_search('1', $products["services"]);
                                //^^^^^^^^^^^^ See here i search in this array
unset($products['services'][$key]);

print_r($products);

输出：

Array ( [services] => Array ( [1] => Array ( [id] => 4 [icon] => icon.png [name] => Icon design [cost] => 300 ) ) )

如果要对数组重新编制索引，使其重新以0开头，则可以执行以下操作：

$products["services"] = array_values($products["services"]);

然后得到输出：

Array ( [services] => Array ( [0] => Array ( [id] => 4 [icon] => icon.png [name] => Icon design [cost] => 300 ) ) )
                            //^^^ See here starts again with 0

---

这应该适合您：

$key = array_search('1', $products["services"]);
                                //^^^^^^^^^^^^ See here i search in this array
unset($products['services'][$key]);

print_r($products);

输出：

Array ( [services] => Array ( [1] => Array ( [id] => 4 [icon] => icon.png [name] => Icon design [cost] => 300 ) ) )

如果要对数组重新编制索引，使其重新以0开头，则可以执行以下操作：

$products["services"] = array_values($products["services"]);

然后得到输出：

Array ( [services] => Array ( [0] => Array ( [id] => 4 [icon] => icon.png [name] => Icon design [cost] => 300 ) ) )
                            //^^^ See here starts again with 0

---

这将循环通过

$products['services']

并删除

'id'

键的值为1的数组<代码>数组\u值只需再次从0重新索引数组

foreach($products['services'] as $key => $service)
{
    if($product['id'] == 1)
    {
        unset($products['services'][$key]);
        array_values($products['services']);
        break;
    }
}

---

这将循环通过

$products['services']

并删除

'id'

键的值为1的数组<代码>数组\u值只需再次从0重新索引数组

foreach($products['services'] as $key => $service)
{
    if($product['id'] == 1)
    {
        unset($products['services'][$key]);
        array_values($products['services']);
        break;
    }
}

---

您是只想从该子阵列中删除[id]=>1，还是只想从整个父阵列中删除[id]=>1（在本例中为键0）？foreach是一种go@edwardmp我想删除整个父数组（在本例中为0键），您只想从该子数组中删除[id]=>1，还是要删除整个父数组（在本例中为0键）？foreach是通往go@edwardmp我想删除整个父数组（在本例中为键0）