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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 |
|---|---|
| 3801 | } else { |
| 3802 | /** |
| 3803 | * Filter the default revision query fields used by the given XML-RPC method. |
| 3804 | * |
| 3805 | * @since 3.5.0 |
| 3806 | * |
| 3807 | * @param array $field An array of revision query fields. |
| 3808 | * @param string $method The method name. |
| 3809 | */ |
| 3810 | $fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post_date', 'post_date_gmt' ), 'wp.getRevisions' ); |
| 3811 | } |
| 3812 | |
| 3813 | if ( ! $user = $this->login( $username, $password ) ) |
| 3814 | return $this->error; |
| 3815 | |
| 3816 | /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */ |
| 3817 | do_action( 'xmlrpc_call', 'wp.getRevisions' ); |
| 3818 | |
| 3819 | if ( ! $post = get_post( $post_id ) ) |