Re: Random Images with no duplicates?

This should work, although if there are only 9 lines in the file, it will run infintely (or until the page times out)... so put a check in for that. $imagesNeeded = 10; $imageArr = array(); // Create array with $imagesNeeded number of elements. for($i=0;$i<$imagesNeeded;$i++) { // choose image $tmpImg = $openFile[array_rand($openFile)]; // Keep getting images until the image you have is not in the existing array of images while(in_array($tmpImg,$imagesArr)) { // choose image $tmpImg = $openFile[array_rand($openFile)]; } // Put unique image into array array_push($imageArr,$tmpImg); } // You now have an array called imageArr with 10 elements/images in it. Aaron On 12/15/05, Mike Rondeau <hyatt65@hotmail.com> wrote: > > Hi, > > I'm still very green with PHP, but am working to fix that. > > I've searched high and low for an answer to this question and so far > no solution has presented itself. I have a script to populate my web page > with random images: > > <?php > #random images example > #this is your file > $file = "images.txt"; > #open the file > $openFile = file($file); > #generate a random number > srand((double)microtime()*1000000); > #get one of the entries in the file > $random_image = $openFile[array_rand($openFile)]; > #display the entry > echo "<img src='$random_image' height='170' > width='100'></img>"; > ?> > > > This works beautifully, but my problem is that sometimes, the same image > displays twice or more on the same page-load. My page requires 10 > different > places where my images need to load, but I can't have any duplicate images > show up. > > Any suggestions on what I need to modify here? > > Thanks in advance! > Mike > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >