Is there a way to avoid self-ping (trackbacks) without plugins?

[Karl1]

Hi,
anyone knows a way to avoid self-pings (trackbacks) without the need of a plugin?

(too much info around the internet, but none seems to be concise)
thanks

[Jeffro]

I don't think you can, not without disabling pingsbacks for everything. The good news though is that there is a plugin that's sole purpose is to disable self pingbacks.

http://wordpress.org/extend/plugins/no-self-ping/

Perhaps you could look within the plugin and figure out the code to use in your functions.php file so you don't end up using the plugin.

[Karl1]

yes, that's what I was thinking about :)

thanks

[kovshenin]

Not tested, but here's a one liner for your functions.php file ;)

 add_action( 'pre_ping', create_function( '&$links', 'foreach ( $links as $k => $link ) if ( 0 === strpos( $link, get_option( "home" ) ) ) unset( $links[$k] );' ) ); 
  

[Karl1]

that doesn't work

[Otto]

Just use the plugin. It's *tiny*. It doesn't add any real load. Simpler = better.