Setting a greeting based on user's time (Good morning, good afternoon…)

Can anyone extrapolate on how to implement a basic "g开发者_运维技巧ood evening" or "good morning" based on the user's time setting?

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.

E.G.: good morning, good night, good afternoon.

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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:

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:

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

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<?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.

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<?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";
    }
    ?>

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$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;

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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.

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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;
}