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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 |
|---|---|
| 3786 | |
| 3787 | /** |
| 3788 | * Filters whether to allow anonymous comments over XML-RPC. |
| 3789 | * |
| 3790 | * @since 2.7.0 |
| 3791 | * |
| 3792 | * @param bool $allow Whether to allow anonymous commenting via XML-RPC. |
| 3793 | * Default false. |
| 3794 | */ |
| 3795 | $allow_anon = apply_filters( 'xmlrpc_allow_anonymous_comments', false ); |
| 3796 | |
| 3797 | $user = $this->login( $username, $password ); |
| 3798 | |
| 3799 | if ( ! $user ) { |
| 3800 | $logged_in = false; |
| 3801 | if ( $allow_anon && get_option( 'comment_registration' ) ) { |
| 3802 | return new IXR_Error( 403, __( 'You must be registered to comment.' ) ); |
| 3803 | } elseif ( ! $allow_anon ) { |
| 3804 | return $this->error; |