双链路随机php

Question

我有n个链接，每个都有自己的关键字。我想一次显示两个链接，在php中随机显示。有什么建议吗？

下面是输入示例：

$text[1] = "<a href=https://www.website.ext/post-1/>words 1</a>";

$text[2] = "<a href=https://www.website.ext/post-2/>words 2</a>";

$text[3] = "<a href=https://www.website.ext/post-3/>words 3</a>";

$text[4] = "<a href=https://www.website.ext/post-4/>words 4</a>";

$text[5] = "<a href=https://www.website.ext/post-5/>words 5</a>"

....

输出示例：

words 1

words 3

or

words 5

words 2

or

words 4

words 1

Answer 1

你可以把它当作

 $arr = [
  '<a href=https://www.website.ext/post-1/>words 1</a>',
  '<a href=https://www.website.ext/post-2/>words 2</a>',
  '<a href=https://www.website.ext/post-3/>words 3</a>',
  '<a href=https://www.website.ext/post-4/>words 4</a>',
  '<a href=https://www.website.ext/post-5/>words 5</a>'
];
$res = array_rand($arr,2);
echo $arr[$res[0]];
echo '<br/>';
echo $arr[$res[1]];

Answer 2

下面是一个代码示例，您可以遵循这些代码来完成任务。您可以使用兰德()函数从数组中选择一个随机索引，然后回显它，或者使用兰德()函数从数组中随机提取给定数量的元素。

<?php
#example 1
$text = array("a", "b", "c", "d", "e");

$keys = array_rand($text, 2);

echo $text[$keys[0]] . "\n";
echo $text[$keys[1]] . "\n";

#example 2

$text = array("a", "b", "c", "d", "e");

echo $text[mt_rand(0,4)] . "\n";
echo $text[mt_rand(0,4)] . "\n";

?>