Image Generator

[Wade]

Generates a random image from your list. Simply add more array values with your image url.

GD Functions must be enabled in the PHP setup.

<?php

// Images array
$imgs = array();
// add $imgs[__current#__] = "__IMGAGE_URL__"; for more images
// image URLs must be relitive to the script
$imgs[0] = "sig_one.jpg";
$imgs[1] = "another_sig.jpg";
$imgs[3] = "new_sig.gif";
$imgs[4] = "yet_another_sig.png";

// choose a random image
$num = rand(0, sizeof($imgs) - 1);
// do a check
if(is_file($imgs[$num])){
	// get type
	if(strstr($imgs[$num], ".gif")){
 *// display gif image
 *header("Content-type: image/gif");
 *$im = imagecreatefromgif($imgs[$num]);
 *imagegif($im);
	}elseif(strstr($imgs[$num], ".jpg") || strstr($imgs[$num], ".jpeg")){
 *// display jpg/jpeg image
 *header("Content-type: image/jpeg");
 *$im = imagecreatefromjpeg($imgs[$num]);
 *imagejpeg($im);
	}elseif(strstr($imgs[$num], ".png")){
 *//display png image
 *header("Content-type: image/png");
 *$im = imagecreatefrompng($imgs[$num]);
 *imagepng($im);
	}else{
 *die("ERROR2!!!");
	}
}else{
	die("ERROR!!!");
}

?>

Simply call the script as an image.

Example:
http://wade.realestateleavenworth.com/wadesig.php

Refresh it and it might change.

Note: Animated gifs lose there animation and it stays on the first frame.
Note2: IPB doesn't allow images with .php extentions so you can't you it for Invisionfree boards. Not sure about phpBB2 yet.

[Ben]

Yeah i seen this around, nice to see it on here though

You wont get much comments on this tut because theres not a lot of PHP'ers on here

Anyway thanks for the submission mate :P

[Wouwousoft]

Tyvm man! Just what I needed for my website... Can you also add text to each image?

[Wade]

Text gets a little tricky, but its possible. Not sure about fonts though.

[Atolar]

Very nice tut. It's a little bulky though. You might want to shorten the script up a little to make it actually worth using a script instead of images.

[Peksa]

Don't see why you're using GD though. :/ Just use readfile() to read the raw-contents of the file and send it with the appropiate header. Gifs and whatever will work fine. :/

[MysticMentalist]

There is a much simpler way of accomplishing the same thing using CSS.

element.class{
<?php $variable=rand(first number, number of images-first number);
switch($variable)
case number: echo 'background-image: url('url of one image');'; break;
case number2: echo 'background-image: url('url of another image');'; break;
?>}

element.class is a CSS thing, element is the page element (such as a div or span), class is a tag that is assigned to that element (as in &gtspan class="name"&lt. then you start the php tag inside of the CSS element (THIS CANNOT be inside of a .css document unless you've modified your server to parse CSS) <?php then we use the variable tag $name and we set that variable to equal a random number (1, 20) for example sets $name's value to be a random number between 1 and 20.
then you call that value back with switch($name)
then you use the cases to identify what each case should be (case 1: echo [echo tells the server to write this] 'background-image: url('url of one image');[closed the CSS tag]'[ends the echo];[ends the case] break;[ends one case and starts the next]

div.head{

<?php $bgi=rand(1, 10);
switch($bgi)
{case 1: echo 'background-image: url('/header/h1.gif');'; break;
case 2: echo 'background-image: url('/header/h2.gif');'; break;
case 3: echo 'background-image: url('/header/h3.gif');'; break;
case 4: echo 'background-image: url('/header/h4.gif');'; break;
case 5: echo 'background-image: url('/header/h5.gif');'; break;
case 6: echo 'background-image: url('/header/h6.gif');'; break;
case 7: echo 'background-image: url('/header/h7.gif');'; break;
case 8: echo 'background-image: url('/header/h8.gif');'; break;
case 9: echo 'background-image: url('/header/h9.gif');'; break;
case 10: echo 'background-image: url('/header/h9.gif');'; break;
?>}

I used that on my site to make a random header image.

[MajesticM00se]

div.head{

<?php $bgi=rand(1, 10);
switch($bgi)
{case 1: echo 'background-image: url('/header/h1.gif');'; break;
case 2: echo 'background-image: url('/header/h2.gif');'; break;
case 3: echo 'background-image: url('/header/h3.gif');'; break;
case 4: echo 'background-image: url('/header/h4.gif');'; break;
case 5: echo 'background-image: url('/header/h5.gif');'; break;
case 6: echo 'background-image: url('/header/h6.gif');'; break;
case 7: echo 'background-image: url('/header/h7.gif');'; break;
case 8: echo 'background-image: url('/header/h8.gif');'; break;
case 9: echo 'background-image: url('/header/h9.gif');'; break;
case 10: echo 'background-image: url('/header/h9.gif');'; break;
?>}

that's a lot of code tbh you would be better off with

div.head{

<?php $bgi=rand(1, 10);
echo "background-image: url('/header/h".$bgi.".gif');";
?>}

be processed in about the 24th of the time

and tbh using the GD module for a random image is pointless as hell, every web browser i've seen has the ability to grab the image tag out of the images raw data to know the type

and anyway just use an apache conf file and throw the php into a file with an image ext so it's forum and xhtml safe