Showing images at certain dates and times

[MitchEvans]

I have some code that allows me to (should do anyway) show a certain image depending on the date and time.

$weekday = date('l');
$hour = date(G); 
echo "The day today is $weekday";
echo "<br>";
echo "and the hour is $hour";
if(($weekday == 'Monday'||'Tuesday'||'Wednesday'||'Thursday') && ($hour > 00  && $hour <= 12))
{ 
  echo '<img src="tomorrow.jpg">'; 
  } 
else{echo '<img src="48.jpg">'; }

My problem is that today is Friday and it's showing the image "tomorrow.jpg" and it should show "48.jpg". Any ideas why? and/or what I can do to fix the problem?
Cheers Guys!

[Weedpacket]

You've got

($weekday == 'Monday'||'Tuesday'||'Wednesday'||'Thursday')

Instead of

($weekday == 'Monday'||$weekday == 'Tuesday'||$weekday == 'Wednesday'||$weekday == 'Thursday')

or

(in_array($weekday, array('Monday', 'Tuesday', 'Wednesday','Thursday')

or

($weekdayN>0 && $weekdayN<5)

(if you had $weekdayN=date('w'))
You've also forgotten the quotes around G in "date('G')".