robots_txt filter-hookWP 3.0.0

Filters the robots.txt output.

Usage

add_filter( 'robots_txt', 'wp_kama_robots_txt_filter', 10, 2 );

/**
 * Function for `robots_txt` filter-hook.
 * 
 * @param string $output The robots.txt output.
 * @param bool   $public Whether the site is considered "public".
 *
 * @return string
 */
function wp_kama_robots_txt_filter( $output, $public ){

	// filter...
	return $output;
}
$output(string)
The robots.txt output.
$public(true|false)
Whether the site is considered "public".

Changelog

Since 3.0.0 Introduced.

Where the hook is called

do_robots()
robots_txt
wp-includes/functions.php 1717
echo apply_filters( 'robots_txt', $output, $public );

Where the hook is used in WordPress

wp-includes/sitemaps/class-wp-sitemaps.php 78
add_filter( 'robots_txt', array( $this, 'add_robots' ), 0, 2 );