获取多维数组键

Question

这听起来很简单，但我不能。如何恢复“SALUT”一词

        numbersss = TextBox2.Text.Split()
    Array.Sort(numbersss)


    For counter As Integer = 0 To (numbersss.Length - 1) Step 1
        If counter < 1 Then
            TextBox1.Text = TextBox1.Text + numbersss(counter).ToString()
        Else
            TextBox1.Text = TextBox1.Text + " " + numbersss(counter).ToString()
        End If

    Next

Answer 1

只需使用array_keys然后收集值。

$keys = array_keys($din);

在此之后，您将获得下面的类似数组：

Array
(
    [0] => SALUT
    [1] => 0
    [2] => 1
    [3] => 2
    [4] => 3
    [5] => Y
    [6] => 4
    [7] => 5
    [8] => 6
)

现在你需要收集：

echo $din_key = $keys[0]; //SALUT