How disable Wordpress self pings.

wordpress_disable_self_pings.php

/* 
   By default Wordpress will ping itself with each internal link.
   
   This is annoying and a tad inefficient. To disable:
   1. Open your Wordpress theme's functions.php file located in /wp-content/themes/[YOUR THEME]/
   2. Paste the code snippet below into your functions.php
   3. Save to have the changes take effect.
*/

function disable_self_pings( &$links ) {
   
   foreach ( $links as $i => $link )
   
      if ( 0 === strpos( $link, get_option( 'home' ) ) )
         
         unset($links[$i]);
   
}

add_action( 'pre_ping', 'disable_self_pings' );