포럼 서클 선택: Discuz 홈 인기 주제

// 定义倒计时函数
function countdown(targetDate) {
    var now = new Date().getTime();
    var distance = targetDate - now;
    
    var days = Math.floor(distance / (1000 * 60 * 60 * 24));
    var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
    var seconds = Math.floor((distance % (1000 * 60)) / 1000);
    
    console.log("距离目标日期还有：" + days + "天 " + hours + "小时 " + minutes + "分钟 " + seconds + "秒");
}

// 设置目标日期为2022年元旦
var targetDate = new Date("2022-01-01").getTime();

// 每秒更新一次倒计时
setInterval(function() {
    countdown(targetDate);
}, 1000);

<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($target_file, PATHINFO_EXTENSION));

// 检查文件是否为真实图片
if(isset($_POST["submit"])) {
    $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
    if($check !== false) {
        echo "文件是一个图片 - " . $check["mime"] . ".";
        $uploadOk = 1;
    } else {
        echo "文件不是一个图片.";
        $uploadOk = 0;
    }
}
?>