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			wp_admin_canonical_url › WordPress Function
Since4.2.0
Deprecatedn/a
› wp_admin_canonical_url ( No parameters )
| Defined at: | 
 | 
| Codex: | 
Removes single-use URL parameters and create canonical link based on new URL.
Removes specific query string parameters from a URL, create the canonical link, put it in the admin header, and change the current URL to match.Related Functions: wp_get_canonical_url, wp_admin_notice, wp_admin_css_uri, wp_nonce_url, wp_get_admin_notice
	Source
function wp_admin_canonical_url() {
	$removable_query_args = wp_removable_query_args();
	if ( empty( $removable_query_args ) ) {
		return;
	}
	// Ensure we're using an absolute URL.
	$current_url  = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
	$filtered_url = remove_query_arg( $removable_query_args, $current_url );
	/**
	 * Filters the admin canonical URL value.
	 *
	 * @since 6.5.0
	 *
	 * @param string $filtered_url The admin canonical URL value.
	 */
	$filtered_url = apply_filters( 'wp_admin_canonical_url', $filtered_url );
	?>
	<link id="wp-admin-canonical" rel="canonical" href="<?php echo esc_url( $filtered_url ); ?>" />
	<script>
		if ( window.history.replaceState ) {
			window.history.replaceState( null, null, document.getElementById( 'wp-admin-canonical' ).href + window.location.hash );
		}
	</script>
	<?php
}