php做随机学号点名器

发布于 22 天前  66 次阅读


# 废话篇

今天课上老师使用了一款学号点名器软件,该软件似乎没有官方来源,都来自各种下载站导致教室多媒体被安装了一大堆垃圾软件,为了方便教师使用我做了这款在线的学号点名器,为了美观使用了iframe嵌入到了https://www.gymxbl.com/studentid 中,你也可以访问https://api.gymxbl.com/xuehao/ 使用,目前还有部分CSS并未施工完毕,部分旧版浏览器以及IE点击重新抽取时会重置点名器,请使用最新版浏览器使用,计划中制作带名字的点名器,尽情期待

# 正篇

核心思路是mt_rand() 使用 Mersenne Twister 算法返回随机整数,如下↓

<?php
$a=mt_rand(1,37);
echo $a;  
?>

增添一点点细节之后↓

<?php
//变量区
$start=$_POST["start"];
$end=$_POST["end"];
$a=mt_rand($start,$end);
?>
<html lang="zh-CN" style="background: unset;"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>学号点名器</title>
<style>body {
	/*font-family: 'Merriweather', serif;*/
	font-family: 华文行楷,Arial,Lucida Grande,Tahoma,sans-serif;
	/*background-color: #ededed;*/
	color: #212121;
	padding: 1.618rem;
	line-height: 1.618;
	font-size: 50px;
}
.number{
font-size: 60px;
}
.content-container {
	padding: 1.618rem 3.236rem;
	max-width: 48.54rem;
	margin: 3.236rem auto;
	background-color: #fff;
	box-shadow: 0 0 12px 6px rgba(0,0,0,0.05);
	border-radius: .269666667rem;
}
.text--alpha {
	color: #c3423f;
}
.button {
    font-size: 16px;
    font-family: 华文行楷,Arial,Lucida Grande,Tahoma,sans-serif;
}
.bubbly-button {
  font-family: 'Helvetica', 'Arial', sans-serif;
  display: inline-block;
  font-size: 16px;
  padding: 1em 2em;
  margin-top: 100px;
  margin-bottom: 60px;
  -webkit-appearance: none;
  appearance: none;
  background-color: #ff0081;
  color: #fff;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  position: relative;
  transition: transform ease-in 0.1s, box-shadow ease-in 0.25s;
  box-shadow: 0 2px 25px rgba(255, 0, 130, 0.5);
}
.bubbly-button:focus {
  outline: 0;
}
.bubbly-button:before, .bubbly-button:after {
  position: absolute;
  content: '';
  display: block;
  width: 140%;
  height: 100%;
  left: -20%;
  z-index: -1000;
  transition: all ease-in-out 0.5s;
  background-repeat: no-repeat;
}
.bubbly-button:before {
  display: none;
  top: -75%;
  background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 20%, #ff0081 20%, transparent 30%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);
  background-size: 10% 10%, 20% 20%, 15% 15%, 20% 20%, 18% 18%, 10% 10%, 15% 15%, 10% 10%, 18% 18%;
}
.bubbly-button:after {
  display: none;
  bottom: -75%;
  background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);
  background-size: 15% 15%, 20% 20%, 18% 18%, 20% 20%, 15% 15%, 10% 10%, 20% 20%;
}
.bubbly-button:active {
  transform: scale(0.9);
  background-color: #e60074;
  box-shadow: 0 2px 25px rgba(255, 0, 130, 0.2);
}
.bubbly-button.animate:before {
  display: block;
  animation: topBubbles ease-in-out 0.75s forwards;
}
.bubbly-button.animate:after {
  display: block;
  animation: bottomBubbles ease-in-out 0.75s forwards;
}

@keyframes topBubbles {
  0% {
    background-position: 5% 90%, 10% 90%, 10% 90%, 15% 90%, 25% 90%, 25% 90%, 40% 90%, 55% 90%, 70% 90%;
  }
  50% {
    background-position: 0% 80%, 0% 20%, 10% 40%, 20% 0%, 30% 30%, 22% 50%, 50% 50%, 65% 20%, 90% 30%;
  }
  100% {
    background-position: 0% 70%, 0% 10%, 10% 30%, 20% -10%, 30% 20%, 22% 40%, 50% 40%, 65% 10%, 90% 20%;
    background-size: 0% 0%, 0% 0%,  0% 0%,  0% 0%,  0% 0%,  0% 0%;
  }
}
@keyframes bottomBubbles {
  0% {
    background-position: 10% -10%, 30% 10%, 55% -10%, 70% -10%, 85% -10%, 70% -10%, 70% 0%;
  }
  50% {
    background-position: 0% 80%, 20% 80%, 45% 60%, 60% 100%, 75% 70%, 95% 60%, 105% 0%;
  }
  100% {
    background-position: 0% 90%, 20% 90%, 45% 70%, 60% 110%, 75% 80%, 95% 70%, 110% 10%;
    background-size: 0% 0%, 0% 0%,  0% 0%,  0% 0%,  0% 0%,  0% 0%;
  }
}
</style>
    </head>
<?php if($start&$end){?>  
<body>
<div class="content-container">
<p>学号点名器</p>
<hr>
<center><p class="number">请<?php if($a==0){echo $a+1;}else{echo $a;}?>号同学回答问题!</p></center>
<hr>
<center><div class="button"><input type="button" class="bubbly-button" onclick="javascript:location.reload();" value="重新抽取">&nbsp;&nbsp;&nbsp;<input type="button" class="bubbly-button" onclick="location.href=''" value="重置点名器"></div></center>
</div>
<?php } else{?>
<body>
<div class="content-container">
<p>学号点名器</p>
<hr>
<form method="POST">
开始学号:
<input type="text" name="start" value="1">
<br>
结束学号:
<input type="text" name="end" value="37">
<hr>
<input type="submit" class="bubbly-button" value="提交">
</form> 
</div>
<?php }?>

</body></html>

# 效果图


努力学习ing