Einfacher Timer mit Start/Stopp-Funktion für mehrere Timer gleichzeitig. Letzte Laufzeiten werden automatisch in Textdateien gespeichert. Sofort einsatzbereit, keine Datenbank nötig.
<?php
define('TIMER_DIR', __DIR__ . '/timers/');
if(!is_dir(TIMER_DIR)) mkdir(TIMER_DIR);
function jsonResponse($data,$code=200){
http_response_code($code);
header('Content-Type: application/json; charset=utf-8');
echo json_encode($data);
exit;
}
function getTimers(){
$timers=[];
foreach(glob(TIMER_DIR.'*.txt') as $file){
$data = json_decode(file_get_contents($file), true);
$timers[] = $data;
}
return $timers;
}
function saveTimer($id,$name,$duration,$last_runtime){
$data=['id'=>$id,'name'=>$name,'duration'=>$duration,'last_runtime'=>$last_runtime];
file_put_contents(TIMER_DIR.$id.'.txt', json_encode($data));
}
if(isset($_GET['action'])){
if($_GET['action']==='add'){
$name = trim($_POST['name'] ?? 'Timer');
$duration = intval($_POST['duration'] ?? 60);
$id = time().rand(100,999);
saveTimer($id,$name,$duration,0);
jsonResponse(['success'=>true]);
}
if($_GET['action']==='list'){
jsonResponse(getTimers());
}
if($_GET['action']==='update'){
$id = intval($_POST['id'] ?? 0);
$runtime = intval($_POST['runtime'] ?? 0);
$timers = getTimers();
foreach($timers as $t){
if($t['id']==$id){
saveTimer($id,$t['name'],$t['duration'],$runtime);
break;
}
}
jsonResponse(['success'=>true]);
}
}
?>
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<title>Dreamcodes Mini-Timer</title>
<style>
body{font-family:Arial,sans-serif;background:#f0f0f0;padding:20px;}
.timer{background:#fff;padding:15px;margin-bottom:10px;border-radius:8px;}
button{margin-left:5px;padding:5px 10px;}
</style>
</head>
<body>
<h2>Mini-Timer / Countdown</h2>
<form id="addTimerForm">
<input type="text" name="name" placeholder="Name">
<input type="number" name="duration" placeholder="Sekunden" value="60">
<button type="submit">Hinzufügen</button>
</form>
<div id="timers"></div>
<script>
let timersData = {};
async function fetchTimers(){
const resp = await fetch('?action=list');
const data = await resp.json();
const container = document.getElementById('timers');
container.innerHTML='';
data.forEach(t=>{
const div = document.createElement('div');
div.className='timer';
div.id='timer-'+t.id;
div.innerHTML=`<strong>${t.name}</strong> - <span id='time-${t.id}'>${t.duration}</span> Sekunden
<button onclick='startTimer(${t.id}, ${t.duration})'>Start</button>
<button onclick='stopTimer(${t.id})'>Stopp</button>
`;
container.appendChild(div);
timersData[t.id]={duration:t.duration, interval:null, remaining:t.duration};
});
}
async function startTimer(id,duration){
stopTimer(id);
timersData[id].remaining=duration;
timersData[id].interval=setInterval(()=>{
timersData[id].remaining--;
document.getElementById('time-'+id).textContent=timersData[id].remaining;
if(timersData[id].remaining<=0){
stopTimer(id);
saveRuntime(id,duration);
}
},1000);
}
function stopTimer(id){
if(timersData[id].interval){
clearInterval(timersData[id].interval);
timersData[id].interval=null;
saveRuntime(id,timersData[id].duration - timersData[id].remaining);
}
}
async function saveRuntime(id,runtime){
const fd=new FormData(); fd.append('id',id); fd.append('runtime',runtime);
await fetch('?action=update',{method:'POST',body:fd});
}
document.getElementById('addTimerForm').addEventListener('submit',async(e)=>{
e.preventDefault();
const formData=new FormData(e.target);
await fetch('?action=add',{method:'POST',body:formData});
e.target.reset();
fetchTimers();
});
fetchTimers();
</script>
</body>
</html>
