句子之间自动切换

Question

我希望我的 joomla 网站能够自动更改它将向用户回显的句子，所以我写了 3 个不同的句子：

$sentence1 = "Everything okay?";
$sentence2 = "Have a good day";
$sentence3 = "What are you doing today?";

我希望它能在句子之间切换，所以我知道我不能只把 $sentence1 放在 echo 中，但我不知道怎么写。我有这样的回声线：

echo "Hey {user->name}." . "<br />" . $sentence1

顺便说一下，{user->name} 来自 Joomla 自己的 "codes"，所以效果很好 :)

Answer 1

在我看来，你可以将你的 3 个句子或 3 个字符串放在一个数组中，然后你可以在循环时打印每个句子。示例：

$array = array(sentence1, sentence2, sentence3 , ... , sentence n);
for ($index = 0; $index < sizeof($array); $index++) {
    echo 'This is sentence ' + index ':' + $array[index];
}

Answer 2

您可以使用随机函数，例如 mt_rand():

$sentence1 = "Everything okay?";
$sentence2 = "Have a good day";
$sentence3 = "What are you doing today?";
$nb = mt_rand(1, 3); // Gets a random number from 1 to 3
$sentence_shown = ${'sentence' . $nb}; // Equals $sentence1, $sentence2 or $sentence3

echo "Hey {user->name}." . "<br />" . $sentence_shown;

或者更好的是，将三个字符串放在一个数组中：

$sentences = array();
$sentences[] = "Everything okay?";
$sentences[] = "Have a good day";
$sentences[] = "What are you doing today?";
$nb = mt_rand(0, 2); // Gets a random number from 0 to 2
$sentence_shown = $sentences[$nb];

echo "Hey {user->name}." . "<br />" . $sentence_shown;

Answer 3

随机问候语：

$sentence[1] = "Everything okay?";
$sentence[2] = "Have a good day";
$sentence[3] = "What are you doing today?";    

echo "Hey {user->name}." . "<br />" . $sentence[rand(1,3)]

句子之间自动切换

Auto switch between sentences

php

joomla