Formatting date values returned from MYSQL table to more readable format including time

March 1st, 2011 | posted in PHP, Tips & Tricks, blog | No Comments » 
echo date("d-m-Y : G-i",strtotime('2011-02-26 09:47:11');

List All Hooked Functions in WordPress

February 18th, 2011 | posted in PHP, Wordpress, blog | No Comments » 
function list_hooked_functions($tag=false){
 global $wp_filter;
 if ($tag) {
 $hook[$tag]=$wp_filter[$tag];
 if (!is_array($hook[$tag])) {
 trigger_error("Nothing found for '$tag' hook", E_USER_WARNING);
 return;
 }
 }
 else {
 $hook=$wp_filter;
 ksort($hook);
 }
 echo '<pre>';
 foreach($hook as $tag => $priority){
 echo "<br />&gt;&gt;&gt;&gt;&gt;\t<strong>$tag</strong><br />";
 ksort($priority);
 foreach($priority as $priority => $function){
 echo $priority;
 foreach($function as $name => $properties) echo "\t$name<br />";
 }
 }
 echo '</pre>';
 return;
}
[/php]

source: http://www.smashingmagazine.com/2009/08/18/10-useful-wordpress-hook-hacks/

List All Hooked Functions

Detect Ajax Request in PHP

December 22nd, 2010 | posted in PHP, blog | No Comments » 
if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
 echo "yes";
 exit;
}

Adding a class to first and last menu items to WordPress menu

December 13th, 2010 | posted in PHP, blog | No Comments »

Add this code to your functions.php file:

function addFirstLastClass($pageList) {

 // pattern to focus on just lis
 $allLisPattern = '/<li(.*)<\/li>/s';
 preg_match($allLisPattern,$pageList,$allLis);
 $liClassPattern =  "/<li[^>]+class=\"([^\"]+)/i";

 // first let's break out each li
 $liArray = explode("\n", $allLis[0]);

 // count to get last li
 $liArrayCount = count($liArray);

 preg_match($liClassPattern, $liArray[0], $firstMatch);
 $newFirstLi = str_replace($firstMatch[1], $firstMatch[1] . " first-menu-item", $liArray[0]);

 if($liArrayCount > 1){
 $lastLiPosition = $liArrayCount - 1;

 preg_match($liClassPattern, $liArray[$lastLiPosition], $lastMatch);
 $newFirstLi = str_replace($firstMatch[1], $firstMatch[1] . " first-menu-item", $liArray[0]);
 $newLastLi = str_replace($lastMatch[1], $lastMatch[1] . " last-menu-item", $liArray[$lastLiPosition]);
 }

 // replace first and last of the li array with new lis
 // rebuild newPageList
 // set first li
 $newPageList = $newFirstLi . '';
 $i = 1;
 while ($i < $lastLiPosition) {
 $newPageList .= $liArray[$i];
 $i++;
 }
 // set last li
 $newPageList .= $newLastLi;

 // lastly, replace old list with new list
 $pageList = str_replace($allLis[0], $newPageList, $pageList);
 return $pageList;
}
add_filter('wp_nav_menu', 'addFirstLastClass');

Thanks to Eliot Kristan