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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 |
---|---|
3929 | } elseif ( ! is_email( $comment['comment_author_email'] ) ) { |
3930 | return new IXR_Error( 403, __( 'A valid email address is required.' ) ); |
3931 | } |
3932 | } |
3933 | } |
3934 |
|
3935 | $comment['comment_parent'] = isset( $content_struct['comment_parent'] ) ? absint( $content_struct['comment_parent'] ) : 0; |
3936 |
|
3937 | /** This filter is documented in wp-includes/comment.php */ |
3938 | $allow_empty = apply_filters( 'allow_empty_comment', false, $comment ); |
3939 |
|
3940 | if ( ! $allow_empty && '' === $comment['comment_content'] ) { |
3941 | return new IXR_Error( 403, __( 'Comment is required.' ) ); |
3942 | } |
3943 |
|
3944 | /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */ |
3945 | do_action( 'xmlrpc_call', 'wp.newComment' ); |
3946 |
|
3947 | $comment_ID = wp_new_comment( $comment, true ); |