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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 7617 | function _publish_post_hook( $post_id ) { |
| 7618 | if ( defined( 'XMLRPC_REQUEST' ) ) { |
| 7619 | /** |
| 7620 | * Fires when _publish_post_hook() is called during an XML-RPC request. |
| 7621 | * |
| 7622 | * @since 2.1.0 |
| 7623 | * |
| 7624 | * @param int $post_id Post ID. |
| 7625 | */ |
| 7626 | do_action( 'xmlrpc_publish_post', $post_id ); |
| 7627 | } |
| 7628 | |
| 7629 | if ( defined( 'WP_IMPORTING' ) ) { |
| 7630 | return; |
| 7631 | } |
| 7632 | |
| 7633 | if ( get_option( 'default_pingback_flag' ) ) { |
| 7634 | add_post_meta( $post_id, '_pingme', '1', true ); |
| 7635 | } |