PHP displaying different images at different times on html webpage-CodePudding

Hi I have this PHP code which I expect should be working however it is currently showing a blank page.

How can I get this working on my HTML site? As when I look on the php file on the local host it doesnt come up with anything just blank. What I want this for is so that different times of the day a different images appear, this is for a radio show. But I cant seem to get it working properly.

<?php
$h = date('G'); //set variable $h to the hour of the day
$d = date('w'); //set variable $d to the day of the week.
$year = date('Y'); //set variable $year to the current year
//G is the date key for hours in 24 format (not 12), with no leading 0s, like 02.
// Adjust 2 hour offset for MST below.
$h = $h-2;

    // MONDAY SCHEDULE
    if ($d == 1 && $h >= 12 && $h < 14) $img = 'img/hosts/test2.jpg';
    else if ($d == 1 && $h >= 14 && $h < 16) $img =  'img/hosts/test2.jpg';
    else if ($d == 1 && $h >=16 && $h < 18) $img = 'img/hosts/test2.jpg';
    else if ($d == 1 && $h >= 18 && $h < 20) $img = 'img/hosts/test2.jpg';
    else if ($d == 1 && $h >= 20 && $h < 22) $img = 'img/hosts/test2.jpg';
    else if ($d == 1 && $h >= 22 && $h < 24) $img = 'img/hosts/test2.jpg';
    else if ($d == 1 && $h >= 19) $img = 'img/hosts/test2.jpg';
    else if ($d == 2 && $h < 0) $img = 'img/hosts/test2.jpg';
    
    // TUESDAY SCHEDULE
    if ($d == 2 && $h >= 12 && $h < 14) $img = 'img/hosts/test2.jpg';
    else if ($d == 2 && $h >= 14 && $h < 16) $img =  'img/hosts/test2.jpg';
    else if ($d == 2 && $h >=16 && $h < 18) $img = 'img/hosts/test2.jpg';
    else if ($d == 2 && $h >= 18 && $h < 20) $img = 'img/hosts/test2.jpg';
    else if ($d == 2 && $h >= 20 && $h < 22) $img = 'img/hosts/test2.jpg';
    else if ($d == 2 && $h >= 22 && $h < 24) $img = 'img/hosts/test2.jpg';
    else if ($d == 2 && $h >= 19) $img = 'img/hosts/test2.jpg';
    else if ($d == 2 && $h < 0) $img = 'img/hosts/test2.jpg';
    
    // WEDNESDAY SCHEDULE
    if ($d == 3 && $h >= 12 && $h < 14) $img = 'img/hosts/test2.jpg';
    else if ($d == 3 && $h >= 14 && $h < 16) $img =  'img/hosts/test2.jpg';
    else if ($d == 3 && $h >=16 && $h < 18) $img = 'img/hosts/test2.jpg';
    else if ($d == 3 && $h >= 18 && $h < 20) $img = 'img/hosts/test2.jpg';
    else if ($d == 3 && $h >= 20 && $h < 22) $img = 'img/hosts/test2.jpg';
    else if ($d == 3 && $h >= 22 && $h < 24) $img = 'img/hosts/test2.jpg';
    else if ($d == 3 && $h >= 19) $img = 'img/hosts/test2.jpg';
    else if ($d == 3 && $h < 0) $img = 'img/hosts/test2.jpg';
    
    // THURSDAY SCHEDULE
    if ($d == 4 && $h >= 12 && $h < 14) $img = 'img/hosts/test2.jpg';
    else if ($d == 4 && $h >= 14 && $h < 16) $img =  'img/hosts/test2.jpg';
    else if ($d == 4 && $h >=16 && $h < 18) $img = 'img/hosts/test2.jpg';
    else if ($d == 4 && $h >= 18 && $h < 20) $img = 'img/hosts/test2.jpg';
    else if ($d == 4 && $h >= 20 && $h < 22) $img = 'img/hosts/test2.jpg';
    else if ($d == 4 && $h >= 22 && $h < 24) $img = 'img/hosts/test2.jpg';
    else if ($d == 4 && $h >= 19) $img = 'img/hosts/test2.jpg';
    else if ($d == 4 && $h < 0) $img = 'img/hosts/test2.jpg';
    
    // FRIDAY SCHEDULE
    if ($d == 5 && $h >= 12 && $h < 14) $img = 'img/hosts/test2.jpg';
    else if ($d == 5 && $h >= 14 && $h < 16) $img =  'img/hosts/test2.jpg';
    else if ($d == 5 && $h >=16 && $h < 18) $img = 'img/hosts/test2.jpg';
    else if ($d == 5 && $h >= 18 && $h < 20) $img = 'img/hosts/test2.jpg';
    else if ($d == 5 && $h >= 20 && $h < 22) $img = 'img/hosts/test2.jpg';
    else if ($d == 5 && $h >= 22 && $h < 24) $img = 'img/hosts/test2.jpg';
    else if ($d == 5 && $h >= 19) $img = 'img/hosts/test2.jpg';
    else if ($d == 5 && $h < 0) $img = 'img/hosts/test2.jpg';

CodePudding user response：

you do not have a default image
you do not echo the image to the page at the end of the page
your schedules are the same for each day and your are setting the same image for every time

I would expect this:

http://sandbox.onlinephpfunctions.com/code/556ecb6463298fcfa82f93372a000b9738d911d9

<?php

  $h = date('G'); //set variable $h to the hour of the day 
  $d = date('w'); //set variable $d to the day of the week.
  $year = date('Y'); //set variable $year to the current year
//G is the date key for hours in 24 format (not 12), with no leading 0s, like 02.
// Adjust 2 hour offset for MST below.
  $h = $h-2;

  $img="img/hosts/off_air.jpg"; // default

    if ($h >= 12 && $h < 14) $img = "img/hosts/test$d_12to14.jpg";
    else if ($h >= 14 && $h < 16) $img =  "img/hosts/test$d_144to16.jpg";
    else if ($h >=16 && $h < 18) $img = "img/hosts/test$d_16to18.jpg";
    else if ($h >= 18 && $h < 20) $img = "img/hosts/test$d_18to20.jpg";
    else if ($h >= 20 && $h < 22) $img = "img/hosts/test$d_20to22.jpg";
    else if ($h >= 22 && $h < 24) $img = "img/hosts/test$d_22to24.jpg"; 
    //else if ($h >= 19) $img = 'img/hosts/test2.jpg'; // already handled 
    else if ($h < 12) $img = 'img/hosts/test$d_morning.jpg';
    
    echo "<img src=\"$img\" />";
    
?>

Now you can have images like

test1_12to14.jpg for Monday from 12 to 14 and test3_22to24.jpg for Wednesday from 22 to 24

CodePudding user response：

you have not declare the scope or condition for hour less than 12 your first condition should be

if ($d == day_number && $h < 12) $img = 'img/hosts/test2.jpg';

this is your code