var timenow = new Date().getTime();
timenow = Math.ceil(timenow/1000);
function autoReload(){
var checktime = new Date().getTime();
checktime = Math.ceil(checktime/1000);
if( (checktime - timenow) > 60 ){ //如果這邊超過60秒，應該是離開瀏覽器又回來，所以reload
location.reload();
}
timenow = checktime;
}
setInterval('autoReload();',5*1000); //5秒偵測一次
if( $_POST ){
$url = 'https://graph.facebook.com/'.urlencode($facebook_app_id).'/accounts/test-users?';
$url .= 'installed=false';
$url .= '&name='.urlencode($_POST['name']);
$url .= '&method=post';
$url .= '&access_token='.urlencode($facebook_app_id).'|'.urlencode($facebook_app_secret);
header('Location: '.$url); exit;
}
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<form method="post" action="test.php">
測試帳號匿名:<input type="text" name="name"><br>
<input type="submit" value="送出">
</form>
</body>
</html>