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>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<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
PHP