PHP得到两个不同的随机数组元素

问题描述：

从数组

 $my_array = array('a','b','c','d','e');

我要得到两个不同的随机元素。

I want to get two DIFFERENT random elements.

通过以下code：

With the following code:

 for ($i=0; $i<2; $i++) {
    $random = array_rand($my_array);  # one random array element number
    $get_it = $my_array[$random];    # get the letter from the array
    echo $get_it;
 }

也能够获得相同的信两次。我需要prevent这一点。我想总是得到两个不同的数组元素。有人能告诉我该怎么做？
谢谢

it is possible to get two times the same letter. I need to prevent this. I want to get always two different array elements. Can somebody tell me how to do that? Thanks

答

您可以随时删除您所选择的第一次圆的元素，那么你就不会再捡起来。如果你不想修改数组创建副本。

You could always remove the element that you selected the first time round, then you wouldn't pick it again. If you don't want to modify the array create a copy.

 for ($i=0; $i<2; $i++) {
    $random = array_rand($my_array);  # one random array element number
    $get_it = $my_array[$random];    # get the letter from the array
    echo $get_it;

    unset($my_array[$random]);
 }

PHP得到两个不同的随机数组元素

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