Question

我有一个像这样的数组

Array
(
    [0] => Array
        (
            [s_id] => 4
            [si_id] => sec_1
            [d_id] => dep_4
            [s_name] => sec1
            [s_location] => LA
            [s_visibility] => yes
            [s_created_date] => 1273639343
            [s_last_updated_date] => 1273639343
            [s_created_by] => someone
            [s_last_updated_by] => everyone
        )

)

现在我想将数组[0]提取到数组中...意味着我想要这个

Array
(
            [s_id] => 4
            [si_id] => sec_1
            [d_id] => dep_4
            [s_name] => sec1
            [s_location] => LA
            [s_visibility] => yes
            [s_created_date] => 1273639343
            [s_last_updated_date] => 1273639343
            [s_created_by] => someone
            [s_last_updated_by] => everyone

)

我如何获得以上结果？

Answer 1

你可以这样做：

$newArray = $oldArray[0];

这将创建一个具有相同键值对的 new 数组。

如果您不想创建新阵列并希望新阵列引用到$oldArray中的现有阵列，您可以这样做：

$newArray = &$oldArray[0];

在这种情况下，对$newArray所做的任何更改也会更改$oldArray。

Answer 2

看到它可能对你有用，

$sss = array () ;
$sss['sadness']['info'] = "some info";
$sss['sadness']['info2'] = "more info";
$sss['sadness']['value'] = "value";
$sss['happiness']['info'] = "some info";
$sss['happiness']['info2'] = "more info";
$sss['happiness']['value'] = "value";
$sss['peace']['info'] = "some info";
$sss['peace']['info2'] = "more info";
$sss['peace']['value'] = "value";

print_r($sss['sadness']);
echo "<br>";

print_r($sss);
echo "<br>";

输出1：

Array ( [info] => some info [info2] => more info [value] => value )

输出2：

Array ( [sadness] => Array ( [info] => some info [info2] => more info [value] => value ) [happiness] => Array ( [info] => some info [info2] => more info [value] => value ) [peace] => Array ( [info] => some info [info2] => more info [value] => value ) )

在php中的数组中提取关联数组

2 个答案: