Category archive: php
Formatting date & time for RSS 0
find more posts in: php, rssAccording to the RSS spec, all of the dates in your RSS content should be in RFC 822 format. That means they should look like this:
Sat, 07 Sep 2002 09:42:31 GMT
Here’s a PHP function that will take a timestamp and give you that string:
function rss_time($time){ return strftime("%a, %d %b %Y %H:%M:%S %z", $time); }
I’m not proud of this 1
find more posts in: php…but I didn’t have much of a choice:
function parse_date_from_string($string=""){ $month_names = array("", "January","February","March","April","May","June","July","August","September","October","November","December"); $regex = "/(\d{1,2})[-|\/|\.](\d{1,2})[-|\/|\.](\d{2}|\d{4})/"; $date = array(); if(preg_match($regex, $string, $matches)){ $month = preg_replace("/^0/", "", $matches[1]); $date['month'] = $month_names[$month]; $date['day'] = $matches[2]; if(strlen($matches[3]) == 2) $matches[3] = "20" . $matches[3]; $date['year'] = $matches[3]; $date['string'] = trim(preg_replace($regex, "", $string)); } return $date; }
Super simple PHP gallery 2
find more posts in: phpJust save this as index.php and put it in a directory with a bunch of images. Images are displayed one per page (newest images first), and clicking on an image takes you to the next one.
<? exec("ls -r|egrep -i \"\.(gif|jpg|jpeg|png)$\"", $files); $files = array_reverse($files); $request = $_SERVER["QUERY_STRING"]; if(!(is_numeric($request) && $request > 0 && $files[$request - 1])){ $request = count($files); } $r_index = $request - 1; $next = $r_index; if($next==0 || !$files[$next-1]){ $next = count($files); } ?> <html> <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8"> <title>my image gallery</title> <style type="text/css" media="screen"> a img{ border:0; } </style> </head> <body> <table border="0" cellspacing="0" cellpadding="0" width="100%" height="100%"> <tr><td align="center" valign="middle"><a href="?<?=$next?>"><img src="<?=$files[$r_index]?>" /></a></td></tr> </table> </body> </html>
Bookflipper 0
find more posts in: internet, phpBookflipper is a tiny web app that serves up pricing information for used books from the Amazon API. My friend Brian has been picking up cheap books and selling them on Amazon for a profit. Now when he’s wondering if a purchase is going to pay off, he can just pull out his cell phone and enter the book’s ISBN into Bookflipper to see what the market is like.
The page size is usually between 0.5-0.6k, thanks in part to some output buffer trickery. Of course, the preview image is much bigger but it seemed too useful to get rid of.
WordPress plugin: x-y of z 1
find more posts in: php, wordpressYou can find it on the plugins download page now. This basically just gives you a function that will print out a snippet of text like “Viewing 1-10 of 423 posts” based on the contents of the page. Hopefully this is marginally useful to someone out there.