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