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<?php
namespace Yoast\WP\SEO\Presenters;
use Yoast\WP\SEO\Presentations\Indexable_Presentation;
/**
* Presenter class for the rel next meta tag.
*/
class Rel_Next_Presenter extends Abstract_Indexable_Tag_Presenter {
/**
* The tag format including placeholders.
*
* @var string
*/
protected $tag_format = '<link rel="next" href="%s" />';
/**
* The method of escaping to use.
*
* @var string
*/
protected $escaping = 'url';
/**
* Returns the rel next meta tag.
*
* @return string The rel next tag.
*/
public function present() {
$output = parent::present();
if ( ! empty( $output ) ) {
/**
* Filter: 'wpseo_next_rel_link' - Allow changing link rel output by Yoast SEO.
*
* @api string $unsigned The full `<link` element.
*/
return \apply_filters( 'wpseo_next_rel_link', $output );
}
return '';
}
/**
* Run the canonical content through the `wpseo_adjacent_rel_url` filter.
*
* @return string $rel_next The filtered adjacent link.
*/
public function get() {
if ( \in_array( 'noindex', $this->presentation->robots, true ) ) {
return '';
}
/**
* Filter: 'wpseo_adjacent_rel_url' - Allow filtering of the rel next URL put out by Yoast SEO.
*
* @api string $rel_next The rel next URL.
*
* @param string $rel Link relationship, prev or next.
* @param Indexable_Presentation $presentation The presentation of an indexable.
*/
return (string) \trim( \apply_filters( 'wpseo_adjacent_rel_url', $this->presentation->rel_next, 'next', $this->presentation ) );
}
}
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