Insert text depending on time of day and day of week - php

Question

I'm trying to piece together a php script to output different text depending on what day it is and the time of day.
Example:
On weekdays (mon-fri), I would like to output text according to the following periods of time (24H, server time, UTC):
00:00-08:00: "Lorem ipsum"
08:00-13:00: "dolor sit amet"
13:00-15:00: "Pellentesque habitant"
15:00-15:30: "dolor sit amet"
15:30-24:00: "Lorem ipsum"
On weekends (sat-sun), I would like to output the following text in this time period:
00:00-24:00 "Lorem ipsum"
Can anyone help with a php script to do that?
I've already gotten some help over at the css-tricks forum. They supplied this code:
<?php
$date = strtotime("now");
$hour = date("H", $date);
switch($hour) {
case 00:
case 01:
case 02:
case 03:
case 04:
case 05:
case 06:
case 07:
case 08:
$dets = array("img" => "image1.png", "txt" => "Lorem ipsum");
break;
case 09:
case 10:
case 11:
case 12:
case 13:
$dets = array("img" => "image2.png", "txt" => "dolor sit amet");
break;
case 14:
case 15:
case 16:
$dets = array("img" => "image3.png", "txt" => "Pellentesque habitant");
break;
case 17:
case 18:
case 19:
case 20:
case 21:
case 22:
case 23:
case 24:
$dets = array("img" => "image1.png", "txt" => "Lorem ipsum");
break;
}
echo "<img src='$dets[img]' alt='$dets[txt]' />";
?>
But it works for all days, and only in full hours. I want to be able to specify per half-hour and on a day to day basis.
Still a php-noob so I'm hoping someone can help me.

Answer 1

Drop the switch statement and use a series of if/else statements. The switch isn't going to give you the granularity without being massively verbose.
<?php
function time_str() {
$dow = date('D'); // Your "now" parameter is implied
if ($dow == 'Sat' || $dow == 'Sun') {
// weekend
return 'Lorum Ipsum';
}
// Time in HHMM format
$hm = (int)date("Gi");
if ($hm >= 0 && $hm < 800) return 'Lorem ipsum';
if ($hm >= 800 && $hm < 1300) return 'dolor sit amet';
if ($hm >= 1300 && $hm < 1500) return ...
if ($hm >= 1500 && $hm < 1530) return ...
if ($hm >= 1530 && $hm < 2359) return ...
}
I also have to point out that your switch statement has an extra case that will never be used - 24. There is no 24th hour; after 23:59, the clock wraps back around to 00:00.

Answer 2

That switch is ugly.
Why not something like:
<?PHP
if (date('l') == 'Saturday' || date('l') == 'Sunday')){
echo 'Lorem ipsum';
}else{ //it's a weekday
if (intval(date('H')) < 8){
echo 'Lorem ipsum';
}elseif(/* another expression */){
echo "something else..
}
}

Answer 3

Thanks for all your suggestions. I had a friend (whos a little better at php than me) look at them, and we came up with this solution.
With this, I am able to specify text for different times of the day, and different days of the week, along with having a list of days with it's very own text.
<?php
date_default_timezone_set('Europe/Copenhagen');
// Runs the function
echo time_str();
function time_str() {
if(IsHoliday())
{
return ClosedHoliday();
}
$dow = date('D'); // Your "now" parameter is implied
if ($dow == 'Sat' || $dow == 'Sun') {
// weekend
return Closed();
}
// Time in HHMM
$hm = (int)date("Gi");
switch(strtolower($dow)){
case 'mon': //MONDAY
if ($hm >= 0 && $hm < 800) return Closed();
if ($hm >= 800 && $hm < 1100) return Open();
if ($hm >= 1100 && $hm < 1500) return OpenDelay();
if ($hm >= 1500 && $hm < 1600) return Open();
if ($hm >= 1600 && $hm < 2359) return Closed();
break;
case 'tue': //TUESDAY
if ($hm >= 0 && $hm < 800) return Closed();
if ($hm >= 800 && $hm < 1100) return Open();
if ($hm >= 1100 && $hm < 1500) return OpenDelay();
if ($hm >= 1500 && $hm < 1600) return Open();
if ($hm >= 1600 && $hm < 2359) return Closed();
break;
case 'wed': //WEDNESDAY
if ($hm >= 0 && $hm < 800) return Closed();
if ($hm >= 800 && $hm < 1100) return Open();
if ($hm >= 1100 && $hm < 1500) return OpenDelay();
if ($hm >= 1500 && $hm < 1600) return Open();
if ($hm >= 1600 && $hm < 2359) return Closed();
break;
case 'thu': //THURSDAY
if ($hm >= 0 && $hm < 800) return Closed();
if ($hm >= 800 && $hm < 1100) return Open();
if ($hm >= 1100 && $hm < 1500) return OpenDelay();
if ($hm >= 1500 && $hm < 1600) return Open();
if ($hm >= 1600 && $hm < 2359) return Closed();
break;
case 'fri': //FRIDAY
if ($hm >= 0 && $hm < 800) return Closed();
if ($hm >= 800 && $hm < 1100) return Open();
if ($hm >= 1100 && $hm < 1500) return OpenDelay();
if ($hm >= 1500 && $hm < 1600) return Open();
if ($hm >= 1600 && $hm < 2359) return Closed();
break;
}
}
// List of holidays
function HolidayList()
{
// Format: 2009/05/11 (comma seperated)
return array("2010/05/04","2009/05/11");
}
// Function to check if today is a holiday
function IsHoliday()
{
// Retrieves the list of holidays
$holidayList = HolidayList();
// Checks if the date is in the holidaylist
if(in_array(date("Y/m/d"),$holidayList))
{
return true;
}else
{
return false;
}
}
// Returns the data when open
function Open()
{
return 'Open';
}
// Return the data when closed
function Closed()
{
return 'Closed';
}
// Returns the data when open but with waiting time
function OpenDelay()
{
return 'Open, but with delay';
}
// Returns the data when closed due to holiday
function ClosedHoliday()
{
return 'Lukket pga. helligdag';
}
?>

Answer 4

$hoursandminutes = date("H:m", $date)
switch ($hoursandminutes)
case "08:15":
//do something,
//be aware though that the string representation 08:15 might actually be 8:15 even in 24h format
I'm sure you can figure out how to go about adding day to day functionallity as well. Read up on the date class.

Answer 5

I am using this, its working, but I would also load some text from an external txt file depending on the day of week.
<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<META HTTP-EQUIV="refresh" CONTENT="60">
<title>LOUNAS</title>
<style type="text/css">
body {
overflow:hidden;
}
</style>
<script type="text/javascript"><!--
var imlocation = "";
function ImageArray (n) {
this.length = n;
for (var i =1; i <= n; i++) {
this[i] = ' '
}
}
image = new ImageArray(7);
image[0] = 'sunday.jpg';
image[1] = 'monday.jpg';
image[2] = 'tuesday.jpg';
image[3] = 'wednsday.jpg';
image[4] = 'thursday.jpg';
image[5] = 'friday.jpg';
image[6] = 'saturday.jpg';
var currentdate = new Date();
var imagenumber = currentdate.getDay();
document.write('<img src="' + imlocation + image[imagenumber] + '"> style="width:100%;height:100%;" border="0" /');
//--></script></head>
<body bgcolor="#000000">
</body>
</html>