PHP code for random image rotation?

[healthbasics]

Could I code something in php that would take a static image on my website and randomly rotate (whenever someone loads the page) among 3 or 4 or 5 different selections of image all of the same format, size, dimension, etc?

 

If so how could I do that.

 

Thanks. 

[hcdarkmage]

Fairly simple code:

<?php 

$pic = array(
"image1.jpg",
"image2.jpg",
"image3.jpg",
"image4.jpg",
"image5.jpg"
);

echo "<img src='img/".$pic[rand(1,5)]."' />";

?>

[healthbasics]

Awesome!  Thanks again!

[healthbasics]

I guess I screwed something up. 

 

Can I call it like this or no?

 

Do i have to cram that whole statement together as one into the spot where I want the image or did I just put a quote in the wrong place or something?

 

<?php 

$pic = array(
"shot1.jpg",
"shot2.jpg",
);

?>


</div>
	<div id="right-column">
		<div id="main-image"><img src="<?php echo "/img/'.$pic[rand(1,2)].'" ?>" height="240px" width="240px" alt="" /></div>
		<div class="sidebar">
			<ul id="menu">

 

My pics are stored in a subdir called img/ from the root.

 

mydomain.com/img/ for example.

 

Thanks.

[Alex]

<?php echo "/img/" . $pic[rand(1,2)]; ?>

[healthbasics]

halfway there.  This time it appears to work half the time.

 

Half the time it returns:

 

<div id="main-image"><img src="/img/" height="240px" width="240px" alt="" /></div>

 

and the other half

 

<div id="main-image"><img src="/img/shot2.jpg" height="240px" width="240px" alt="" /></div>

 

 

It seems like whenever it selects shot1.jpg from the random function it returns nothing.... 

[hcdarkmage]

try:

<?php echo "/img/" . $pic[rand(0,2)]; ?>

 

I always had a problem with array syntax.

[Alex]

Didn't even notice that. The array indices start at 0, so it should be:

 

rand(0, 1)

 

Or you can just use:

 

$pic[array_rand($pic)];

[hcdarkmage]

There we go! That's what I was looking for. Try AlexWD's suggestion:

$pic[array_rand($pic)];

[healthbasics]

Not quite but following your logic I got it. 

 

what i needed was

 

<?php echo "/img/" . $pic[rand(0,1)]; ?>

 

<?php echo "/img/" . $pic[rand(0,2)]; ?> 

 

gave me each picture sometimes and once in a while a blank.  I figure 0,2 must be an array of 3 with values of 0, 1, 2...

 

Thanks!

 

[healthbasics]

an even more elegant solution.  thanks Alex!