<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2018/2/26
 * Time: 22:08
 */

//利用setDate()设置日期
//利用setTime()设置时间
$d = new DateTime();
$d ->setDate(2016,2,3);
$d->setTime(10,1,1);
echo $d->format('Y-m-d H:i:s');
exit;
$d = new DateTime('next Tuesday');
echo '<select name="day">\n';
for ($i = 0; $i < 10; $i++) {
    print "<option>" . $d->format('F jS') . "</option>\n";
    $d->modify('+1 day');
}
echo '</select>';

date_default_timezone_get('UTC');//世界协调时间 (UTC)
exit;

var_dump(checkdate(3, 35, 2015));//验证输入的日期是否正确
var_dump(checkdate(2, 29, 2017));//验证输入的日期是否正确
var_dump(checkdate(1, 10, 2015));

exit;
$url = 'https://www.baidu.com/';
$c = curl_init($url);
curl_setopt($c, CURLOPT_RETURNTRANSFER，true );
$fact = curl_exec($c);
echo $fact;

exit;
$arr = array('name' => 'zhangbuxin', 'age' => '28');
$res = json_encode($arr);
$obj = json_decode($res);//通过json_decode()将json转化为PHP对象
var_dump($obj);
exit;

$params = array('id' => '1593436999596728198', 'format' => 'json');
$url = "http://baijia.baidu.com/s?" . http_build_query($params);
echo $url;