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m.php
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1,minimum-scale=1, maximum-scale=1, user-scalable=no">
<meta name="apple-mobile-web-app-capable" content="yes">
<title>PPT控制器</title>
<meta name="author" content="s5s5">
<style>
html,body{margin:0; padding:0;}
body{background-color:#000; color:#fff; text-align:center;}
#next{width:300px; height:220px; background-color:#fff; color:#000; border:#0E0 dashed 3px; font-size:50px; margin:10px auto; display:block;}
#prev,
#demo{width:140px; height:100px; background-color:#eee; color:#000; border:#666 dashed 2px; font-size:20px; overflow:hidden;}
</style>
</head>
<body>
<?php
function object_array($array) //对象转数组函数
{
if(is_object($array))
{
$array = (array)$array;
}
if(is_array($array))
{
foreach($array as $key=>$value)
{
$array[$key] = object_array($value);
}
}
return $array;
}
if (!@$f = fopen("control.json", "r")) { //无文件时创建
echo "文件不存在！";
$arr = array('num' => 9999, 'demo' => 0);
} else { // 打开文件
$num = fgets($f);
fclose($f);
$arrO = json_decode($num); //json对象转PHP对象
$arr = object_array($arrO); //对象转数组
}
if (!empty($_POST['next'])) {
$arr['num']++;
}
if (!empty($_POST['prev'])) {
$arr['num']--;
}
if (!empty($_POST['demo'])) {
$arr['demo']++;
}
$num = json_encode($arr);
$ff = fopen("control.json", "w"); //写进json
fwrite($ff, $num);
fclose($ff);
?>
<button type="button" id="next">下一页</button>
<button type="button" id="prev">上一页</button>
<button type="button" id="demo">DEMO</button>
<script src="js/jquery-3.6.4.min.js"></script>
<script>
$(function () {
var sound = new Audio('piano.mp3');
sound.play();
$('#next').click(function () {
$.post('m.php', 'next=true');
sound.currentTime = 0;
sound.play();
});
$('#prev').click(function () {
$.post('m.php', 'prev=true');
sound.currentTime = 0;
sound.play();
});
$('#demo').click(function () {
$.post('m.php', 'demo=true');
sound.currentTime = 0;
sound.play();
});
});
</script>
</body>
</html>