W3cubDocs

/WordPress

wp_rel_nofollow( string $text )

Adds rel nofollow string to all HTML A elements in content.

Description

Parameters

$text

(string) (Required) Content that may contain HTML A elements.

Return

(string) Converted content.

Source

File: wp-includes/formatting.php

function wp_rel_nofollow( $text ) {
	// This is a pre save filter, so text is already escaped.
	$text = stripslashes( $text );
	$text = preg_replace_callback( '|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text );
	return wp_slash( $text );
}

Changelog

Version Description
1.5.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_rel_nofollow