Posts Tagged header()

Random image from folder – rotating banner in php

So the other day someone was looking for a quick php script that would load a random image from a folder (rotating banner script) and display it on their website. There are already a ton of scripts out there that do this but of course, this was an excuse to build something for fun. So, I decided to create a script that would do just this but with the least amount of code lines still keeping it efficient (again, just for fun). This is what I came up with:

<?php
$files = @opendir($dir=trim($_REQUEST[‘dir’])) or die(‘Not Valid’);
while($file = readdir($files)) preg_match(‘/(.png)|(.gif)|(.jpg)/i’,$file) ?
        $images[] = array($file,substr($file,strlen($file)-3)) : null;
count($images) ? header(‘Content-type: image/’.$images[$id=rand(0,count($images)-1)][1]) :
        die(‘Not Valid’);
print file_get_contents($dir.(substr($dir,strlen($dir)-1)!=‘/’?‘/’:null).$images[$id][0]);
?>

Read the rest of this entry »

Tags: , , , , , , ,

Getting list of members from an event in meetup.com with PHP

So, last week I attended our monthly Atlanta PHP meet and had a good time. At the end of the session some prizes were awarded “randomly”. Why “randomly”? Because a member of the group wrote down two names on a piece of paper and started asking the other members for a number. The two to get the numbers correct won an award. Now, this was a quick last minute thing for fun, so I am definitely over engineering this – but hey, that’s what makes programming fun!

The problems were:

  • (and I apologize for my honesty in case any member that attended the event reads this) I could see the persons hand movement while writing down the numbers so I already knew one of the numbers before starting. 
  • The paper was lifted at some point before he started calling out for numbers and I could see the second number written on the paper.
  • It’s not truly random

Read the rest of this entry »

Tags: , , , , , , , ,