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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 |
---|---|
1687 | */ |
1688 | function do_robots() { |
1689 | header( 'Content-Type: text/plain; charset=utf-8' ); |
1690 |
|
1691 | /** |
1692 | * Fires when displaying the robots.txt file. |
1693 | * |
1694 | * @since 2.1.0 |
1695 | */ |
1696 | do_action( 'do_robotstxt' ); |
1697 |
|
1698 | $output = "User-agent: *\n"; |
1699 | $public = get_option( 'blog_public' ); |
1700 |
|
1701 | $site_url = parse_url( site_url() ); |
1702 | $path = ( ! empty( $site_url['path'] ) ) ? $site_url['path'] : ''; |
1703 | $output .= "Disallow: $path/wp-admin/\n"; |
1704 | $output .= "Allow: $path/wp-admin/admin-ajax.php\n"; |
1705 |
|