描述
显示robot.txt文件内容。
回应的内容应该用于永久链接或用于创建robot.txt文件。
用法
<?php do_robots() ?>注意
使用到 do_action() 调用 ‘do_robotstxt’ hook for displaying robots.txt rules.
历史
添加于 版本: 2.1.0
源文件
do_robots() 函数的代码位于 wp-includes/functions.php.
/**
* Display the robots.txt file content.
*
* The echo content should be with usage of the permalinks or for creating the
* robots.txt file.
*
* @since 2.1.0
*/
function do_robots() {
header( ‘Content-Type: text/plain; charset=utf-8’ );
/**
* Fires when displaying the robots.txt file.
*
* @since 2.1.0
*/
do_action( ‘do_robotstxt’ );
$output = “User-agent: *
“;
$public = get_option( ‘blog_public’ );
if ( ‘0’ == $public ) {
$output .= “Disallow: /
“;
} else {
$site_url = parse_url( site_url() );
$path = ( !empty( $site_url[‘path’] ) ) ? $site_url[‘path’] : ”;
$output .= “Disallow: $path/wp-admin/
“;
}
/**
* Filter the robots.txt output.
*
* @since 3.0.0
*
* @param string $output Robots.txt output.
* @param bool $public Whether the site is considered “public”.
*/
echo apply_filters( ‘robots_txt’, $output, $public );
}