随机问候生成器

试图让这个随机问候生成器工作。起初我没有 $greet 变量的数组，但他们收到错误消息说我没有定义变量。现在我收到一个数组到字符串的转换错误。有什么想法吗？

<!DOCTYPE HTML>

<html>

<head>

<title>hello</title>

</head>

<body>

<?php

//store random greetings

$greet = array('Hello','Welcome','Greetings!','Salutatons!','Good day!', 'Yo!');

switch($greet){

case 1:

$greet = 'Hello!';

break;

case 2:

$greet = 'Welcome!';

break;

case 3:

$greet = 'Greetings!';

break;

case 4:

$greet = 'Salutations!';

break;

case 5:

$greet = 'Good day!';

break;

case 6:

$greet = 'Yo!';

break;

}

echo $greet;

//set the seed for mtrand with the number of microseconds

//since the last full second of the clock

mt_srand((double)microtime() * 1000000);

//computes a random integer 0-4

$number=mt_rand(0,5);

echo $number;

</body>

</html>

守着星空守着你

浏览 147回答 1

1回答

梵蒂冈之花

您应该使用array_rand()从数组中获取随机键。不是开关/外壳。看看下面的代码。现在$greet变量将用数组中的随机问候覆盖自己。<?php//store random greetings$greet = array('Hello','Welcome','Greetings!','Salutatons!','Good day!', 'Yo!');$greet = $greet[array_rand($greet)];echo $greet;//set the seed for mtrand with the number of microseconds//since the last full second of the clockmt_srand((double)microtime() * 1000000);//computes a random integer 0-4$number=mt_rand(0,5);echo $number;

随时随地看视频慕课网APP