lewismcarey

  # WORDPRESS Oldest Post Date
  
  This function gets the oldest post's published date (status published). 
  
  * You must pass it a post type (accepts Custom Post Types)
  * You may pass it a date format (http://www.php.net/manual/en/function.date.php)
  
  ## Usage
  
  echo oldest_post_date( 'post' );

lewismcarey

 
  # WORDPRESS Live Preview
  
  This wrapper allows you to maintain a HTML holding page whislt seetting up a preview of a live WP site.
  This is handy if you tend to work locally and don't intend to set up a remote test environment.
  
  ## Usage
  
  http://www.yourwebsite.com?preview=allow
  http://www.yourwebsite.com?preview=end

lewismcarey

<!-- OG -->
<meta property="og:name" content="<?php echo bloginfo( 'name' ); ?>" />
<meta property="og:type" content="website" />
<meta property="og:title" content="<?php the_title(); ?>" />
<meta property="og:url" content="<?php the_permalink(); ?>" />
<meta property="og:image" content="path/to/avatar.png" />
<meta property="og:image:width" content="200" />
<meta property="og:image:height" content="200" />

lewismcarey

<?php
/* using thumbnail */
add_filter('wp_generate_attachment_metadata','bw_images_filter');

function bw_images_filter($meta) {
	$file = wp_upload_dir();
	$file = trailingslashit($file['path']).$meta['sizes']['thumbnail']['file'];
	list($orig_w, $orig_h, $orig_type) = @getimagesize($file);
	$image = wp_load_image($file);
	imagefilter($image, IMG_FILTER_GRAYSCALE);