Javascript 根据用户的时间设置问候语（早上好，下午好......）
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Setting a greeting based on user's time (Good morning, good afternoon…)
提问by Ddoug
Can anyone extrapolate on how to implement a basic "good evening" or "good morning" based on the user's time setting?
谁能根据用户的时间设置推断出如何实现基本的“晚上好”或“早上好”？
Perhaps PHP will fetch the server time, but I'm looking to greet the site visitor with a time-based appropriate greeting that considers their time of day.
也许 PHP 会获取服务器时间，但我希望使用基于时间的适当问候语来迎接站点访问者，该问候语考虑了他们一天中的时间。
E.G.:good morning, good night, good afternoon.
EG：早上好，晚上好，下午好。
回答by Sampson
Base it on .getHours()of the date object. Using javascript's Date object will automatically use the user's local time, rather than the server-time:
它基于.getHours()日期对象。使用 javascript 的 Date 对象将自动使用用户的本地时间，而不是服务器时间：
var now = new Date();
alert( now.getHours() );
A couple conditional checks, and you're in business. For instance, the following is a very simple and easy-to-understand example:
几个条件检查，你在做生意。例如，下面是一个非常简单易懂的例子：
var now = new Date();
var hrs = now.getHours();
var msg = "";
if (hrs > 0) msg = "Mornin' Sunshine!"; // REALLY early
if (hrs > 6) msg = "Good morning"; // After 6am
if (hrs > 12) msg = "Good afternoon"; // After 12pm
if (hrs > 17) msg = "Good evening"; // After 5pm
if (hrs > 22) msg = "Go to bed!"; // After 10pm
alert(msg);
It's currently 2:56am here, so I see "Mornin' Sunshine!" when I run this. You can test your own local time with this online demo: http://jsbin.com/aguyo3/edit
现在是凌晨 2 点 56 分，所以我看到了“Mornin' Sunshine！” 当我运行这个。您可以使用此在线演示测试您自己的本地时间：http: //jsbin.com/aguyo3/edit
回答by Prem Gurusamy
<?php
// I'm India so my timezone is Asia/Calcutta
date_default_timezone_set('Asia/Calcutta');
// 24-hour format of an hour without leading zeros (0 through 23)
$Hour = date('G');
if ( $Hour >= 5 && $Hour <= 11 ) {
echo "Good Morning";
} else if ( $Hour >= 12 && $Hour <= 18 ) {
echo "Good Afternoon";
} else if ( $Hour >= 19 || $Hour <= 4 ) {
echo "Good Evening";
}
?>
For more information about date see function.date. I Hope this will help.
有关日期的更多信息，请参阅function.date。我希望这将有所帮助。
回答by Md. Aftab Uddin tohan
<?php
/* This sets the $time variable to the current hour in the 24 hour clock format */
$time = date("H");
/* Set the $timezone variable to become the current timezone */
$timezone = date("e");
/* If the time is less than 1200 hours, show good morning */
if ($time < "12") {
echo "Good morning";
} else
/* If the time is grater than or equal to 1200 hours, but less than 1700 hours, so good afternoon */
if ($time >= "12" && $time < "17") {
echo "Good afternoon";
} else
/* Should the time be between or equal to 1700 and 1900 hours, show good evening */
if ($time >= "17" && $time < "19") {
echo "Good evening";
} else
/* Finally, show good night if the time is greater than or equal to 1900 hours */
if ($time >= "19") {
echo "Good night";
}
?>
回答by RN Kushwaha
$hour = date('H');
if ($hour >= 20) {
$greetings = "Good Night";
} elseif ($hour > 17) {
$greetings = "Good Evening";
} elseif ($hour > 11) {
$greetings = "Good Afternoon";
} elseif ($hour < 12) {
$greetings = "Good Morning";
}
echo $greetings;
回答by Ravuru Bhargav
const now = new Date().getHours();
switch (true) {
case (now<=12): console.log("Good Morning");break;
case (now>12 && now<16): console.log("Good Afternnon");break;
case (now>=16 && now<20): console.log("Good Evening");break;
case (now>=20 && now<=24): console.log("Good Night");break;}
This code is based on JavaScript, Hope this will help you.
此代码基于 JavaScript，希望对您有所帮助。
回答by Angrej Kumar
function greeting_msg() {
$hour = date('H');
if ($hour >= 18) {
$greeting = "Good Evening";
} elseif ($hour >= 12) {
$greeting = "Good Afternoon";
} elseif ($hour < 12) {
$greeting = "Good Morning";
}
return $greeting;
}
