mlseim
May 22 '06, 02:31 PM
Requirements:
1) Your webhost allows PHP scripting.
2) Your web page(s) have the extension .php
3) You have a directory with all of your photos uploaded
by number ... example: photo_1.jpg, photo_2.jpg, photo_3.jpg
At the beginning of your web page, right after <body>, insert this script:
<?php
srand(time());
$max=50; // This is the number of photo you have in your directory (eg. numbered 1-50)
$arr = array();
while ( count($arr) < $max ) {
$x = mt_rand(1,$max);
if ( !in_array($x,$arr) ) { $arr[] = $x; }
}
$p1 = "photo_".$arr[0].".jpg";
$p2 = "photo_".$arr[1].".jpg";
$p3 = "photo_".$arr[2].".jpg";
?>
In the script above, you have defined the number of photos you have in
your directory, in this case, there are 50 of them numbered 1-50 (photo_1.jpg, photo_2.jpg)
You will have 3 randomly picked photos ready to be used at any time.
You can display them by using any of the three $p variables ...
Giving the directory path, and then the PHP variable (which is the filename of your photo)...
<img src="./myphotos/<?=$p1?>" alt="my title">
or
<img src="./myphotos/<?=$p2?>" alt="my title">
Those three photos created in the script will all be different and random.
If you need more than 3 photos, add more:
$p4 = "photo_".$arr[3].".jpg";
$p5 = "photo_".$arr[4].".jpg";
$p6 = "photo_".$arr[5].".jpg";
Each time the page is refreshed or displayed, the 3 photos will randomly change.
Here's a working example:
http://www.pierreandclaudia.com
1) Your webhost allows PHP scripting.
2) Your web page(s) have the extension .php
3) You have a directory with all of your photos uploaded
by number ... example: photo_1.jpg, photo_2.jpg, photo_3.jpg
At the beginning of your web page, right after <body>, insert this script:
<?php
srand(time());
$max=50; // This is the number of photo you have in your directory (eg. numbered 1-50)
$arr = array();
while ( count($arr) < $max ) {
$x = mt_rand(1,$max);
if ( !in_array($x,$arr) ) { $arr[] = $x; }
}
$p1 = "photo_".$arr[0].".jpg";
$p2 = "photo_".$arr[1].".jpg";
$p3 = "photo_".$arr[2].".jpg";
?>
In the script above, you have defined the number of photos you have in
your directory, in this case, there are 50 of them numbered 1-50 (photo_1.jpg, photo_2.jpg)
You will have 3 randomly picked photos ready to be used at any time.
You can display them by using any of the three $p variables ...
Giving the directory path, and then the PHP variable (which is the filename of your photo)...
<img src="./myphotos/<?=$p1?>" alt="my title">
or
<img src="./myphotos/<?=$p2?>" alt="my title">
Those three photos created in the script will all be different and random.
If you need more than 3 photos, add more:
$p4 = "photo_".$arr[3].".jpg";
$p5 = "photo_".$arr[4].".jpg";
$p6 = "photo_".$arr[5].".jpg";
Each time the page is refreshed or displayed, the 3 photos will randomly change.
Here's a working example:
http://www.pierreandclaudia.com