wp_shortlink_wp_head

The timeline below displays how wordpress function wp_shortlink_wp_head has changed across different WordPress versions. If a version is not listed, refer to the next available version below.

WordPress Version: 4.6

/**
 * Injects rel=shortlink into the head if a shortlink is defined for the current page.
 *
 * Attached to the {@see 'wp_head'} action.
 *
 * @since 3.0.0
 */
function wp_shortlink_wp_head()
{
    $shortlink = wp_get_shortlink(0, 'query');
    if (empty($shortlink)) {
        return;
    }
    echo "<link rel='shortlink' href='" . esc_url($shortlink) . "' />\n";
}

WordPress Version: 4.1

/**
 *  Inject rel=shortlink into head if a shortlink is defined for the current page.
 *
 *  Attached to the wp_head action.
 *
 * @since 3.0.0
 */
function wp_shortlink_wp_head()
{
    $shortlink = wp_get_shortlink(0, 'query');
    if (empty($shortlink)) {
        return;
    }
    echo "<link rel='shortlink' href='" . esc_url($shortlink) . "' />\n";
}

WordPress Version: 3.7

/**
 *  Inject rel=shortlink into head if a shortlink is defined for the current page.
 *
 *  Attached to the wp_head action.
 *
 * @since 3.0.0
 *
 * @uses wp_get_shortlink()
 */
function wp_shortlink_wp_head()
{
    $shortlink = wp_get_shortlink(0, 'query');
    if (empty($shortlink)) {
        return;
    }
    echo "<link rel='shortlink' href='" . esc_url($shortlink) . "' />\n";
}