List Thumbnail Sizes

List Thumbnail Sizes

	<?php function list_thumbnail_sizes(){
	global $_wp_additional_image_sizes;
		$sizes = array();
		foreach( get_intermediate_image_sizes() as $s ){
			$sizes[ $s ] = array( 0, 0 );
			if( in_array( $s, array( 'thumbnail', 'medium', 'large' ) ) ){
				$sizes[ $s ][0] = get_option( $s . '_size_w' );
				$sizes[ $s ][1] = get_option( $s . '_size_h' );
			}else{
				if( isset( $_wp_additional_image_sizes ) && isset( $_wp_additional_image_sizes[ $s ] ) )
					$sizes[ $s ] = array( $_wp_additional_image_sizes[ $s ]['width'], $_wp_additional_image_sizes[ $s ]['height'], );
			}
		}

		echo '<p>Registered Image Sizes:</p>';
		echo '<ul style="list-style:circle inside;">';	
		foreach( $sizes as $size => $atts ){
			echo '<li>' . $size . ' ' . implode( 'x', $atts ) . "</li>\n";
		}
		echo '</ul>';
	} ?>
 
	<?php list_thumbnail_sizes(); ?>