Here are the files. Right now I keep getting a message from the alert that the track variable is undefined. It seems like the PHP works because if i go straight to the php link, and manually type in the GET variable, i get the song returned. Also, I am looking for a way to get a random 10 second clip of a song (like how my music teacher tests us). The way I thought of is to divide the duration by 10 and multiply it by a random number, and then use a setineterval to see if the currenttime() is 10 seconds more that the initial audio time.
//index.php
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Music Final Quiz</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<audio src="" id="player"></audio>
<button id="change_track">Play A Different Track</button>
<script src="jquery.js"></script>
<script src="script.js"></script>
</body>
</html>
//script.js
var player = document.getElementById("player");
var changeTrack = document.getElementById("change_track");
var previousNumber = null;
var timeStart = null;
function loadTrack(){
var randomNumber = Math.floor(Math.random()*11);
if(randomNumber != 0 && randomNumber != previousNumber){
previousNumber = randomNumber;
}else{
randomNumber = 1;
}
var track = $().get("generate_song.php?track_number=" + randomNumber);
player.src = track;
player.load();
// player.currentTime() = (player.duration/10) * Math.floor(Math.random()*11);
player.play();
alert(track);
}
window.addEventListener("load", loadTrack);
changeTrack.addEventListener("click",loadTrack);
//generate_song.php
$directory = "Audio_Files";
$files = scandir($directory);
$requested_song = $_GET["track_number"];
echo $files[$requested_song + 1]."<br/>";
最佳答案
player.currentTime是属性，而不是函数，因此应为:
player.currentTime = (player.duration/10) * Math.floor(Math.random()*11);
对于间隔部分，我将添加间隔并检查歌曲是否已暂停:
function loadTrack(){
var randomNumber = Math.floor(Math.random()*11);
if(randomNumber != 0 && randomNumber != previousNumber){
previousNumber = randomNumber;
}else{
randomNumber = 1;
}
var track = $().get("generate_song.php?track_number=" + randomNumber);
player.src = track;
player.load();
player.currentTime = (player.duration/10) * Math.floor(Math.random()*11);
player.play();
playTenSeconds = setInterval(function(){
if(player.paused === false){
player.pause();
alert(track);
clearInterval(playTenSeconds);
}else{
player.play();
}
}, 10);
}
关于php - 尝试在随机时间播放随机歌曲(学习音乐决赛:)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16782066/