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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 |
---|---|
1629 |
|
1630 | /** |
1631 | * Filters post data array to be inserted via XML-RPC. |
1632 | * |
1633 | * @since 3.4.0 |
1634 | * |
1635 | * @param array $post_data Parsed array of post data. |
1636 | * @param array $content_struct Post data array. |
1637 | */ |
1638 | $post_data = apply_filters( 'xmlrpc_wp_insert_post_data', $post_data, $content_struct ); |
1639 |
|
1640 | $post_ID = $update ? wp_update_post( $post_data, true ) : wp_insert_post( $post_data, true ); |
1641 | if ( is_wp_error( $post_ID ) ) { |
1642 | return new IXR_Error( 500, $post_ID->get_error_message() ); |
1643 | } |
1644 |
|
1645 | if ( ! $post_ID ) { |
1646 | if ( $update ) { |
1647 | return new IXR_Error( 401, __( 'Sorry, the post could not be updated.' ) ); |