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trackback_rdf( int $deprecated = '' )

Generates and displays the RDF for the trackback information of current post.

Description

Deprecated in 3.0.0, and restored in 3.0.1.

Parameters

$deprecated

(int) (Optional) Not used (Was $timezone = 0).

Default value: ''

Source

File: wp-includes/comment-template.php 

function trackback_rdf( $deprecated = '' ) {
	if ( ! empty( $deprecated ) ) {
		_deprecated_argument( __FUNCTION__, '2.5.0' );
	}

	if ( isset( $_SERVER['HTTP_USER_AGENT'] ) && false !== stripos( $_SERVER['HTTP_USER_AGENT'], 'W3C_Validator' ) ) {
		return;
	}

	echo '<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
			xmlns:dc="http://purl.org/dc/elements/1.1/"
			xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/">
		<rdf:Description rdf:about="';
	the_permalink();
	echo '"' . "\n";
	echo '    dc:identifier="';
	the_permalink();
	echo '"' . "\n";
	echo '    dc:title="' . str_replace( '--', '&#x2d;&#x2d;', wptexturize( strip_tags( get_the_title() ) ) ) . '"' . "\n";
	echo '    trackback:ping="' . get_trackback_url() . '"' . " />\n";
	echo '</rdf:RDF>';
}

Uses

Uses Description
wp-includes/class-pop3.php: stripos()
wp-includes/formatting.php: wptexturize()

Replaces common plain text characters with formatted entities.
wp-includes/functions.php: _deprecated_argument()

Mark a function argument as deprecated and inform when it has been used.
wp-includes/link-template.php: the_permalink()

Displays the permalink for the current post.
wp-includes/post-template.php: get_the_title()

Retrieve post title.
wp-includes/comment-template.php: get_trackback_url()

Retrieves the current post’s trackback URL.

Changelog

Version Description
0.71 Introduced.

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