Using WordPress ‘get_trackback_url()’ PHP function

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The get_trackback_url() WordPress PHP function retrieves the current post’s trackback URL.

Usage

To use the get_trackback_url() function, simply call it within the loop:

$trackback_url = get_trackback_url();
echo 'Trackback URL: ' . $trackback_url;

Parameters

There are no parameters for this function.

More information

See WordPress Developer Resources: get_trackback_url()

Examples

Display the trackback URL in a post

This example displays the trackback URL in a post’s meta information.

// Display the trackback URL
$trackback_url = get_trackback_url();
echo '<div class="post-meta">';
echo 'Trackback URL: <a href="' . $trackback_url . '">' . $trackback_url . '</a>';
echo '</div>';

Add trackback URL to post footer

This example adds the trackback URL to the post footer.

function mytheme_add_trackback_url() {
    $trackback_url = get_trackback_url();
    echo 'Trackback URL: <a href="' . $trackback_url . '">' . $trackback_url . '</a>';
}
add_action('the_content', 'mytheme_add_trackback_url');

Display trackback URL only if enabled

This example checks if trackbacks are enabled for the current post and displays the trackback URL if so.

if (pings_open()) {
    $trackback_url = get_trackback_url();
    echo 'Trackback URL: <a href="' . $trackback_url . '">' . $trackback_url . '</a>';
}

Create a function to display the trackback URL

This example creates a function to display the trackback URL, making it easier to reuse across your theme.

function display_trackback_url() {
    $trackback_url = get_trackback_url();
    echo 'Trackback URL: <a href="' . $trackback_url . '">' . $trackback_url . '</a>';
}

// Use the function within the loop
display_trackback_url();

Display trackback URL in a list of post meta information

This example displays the trackback URL in a list of post meta information, along with the author, date, and category.

echo '<ul class="post-meta">';
echo '<li>Author: ' . get_the_author() . '</li>';
echo '<li>Date: ' . get_the_date() . '</li>';
echo '<li>Category: ' . get_the_category_list(', ') . '</li>';
$trackback_url = get_trackback_url();
echo '<li>Trackback URL: <a href="' . $trackback_url . '">' . $trackback_url . '</a></li>';
echo '</ul>';