Source

File: wp-includes/canonical.php

function strip_fragment_from_url( $url ) {
	$parsed_url = parse_url( $url );

	if ( ! empty( $parsed_url['host'] ) ) {
		// This mirrors code in redirect_canonical(). It does not handle every case.
		$url = $parsed_url['scheme'] . '://' . $parsed_url['host'];
		if ( ! empty( $parsed_url['port'] ) ) {
			$url .= ':' . $parsed_url['port'];
		}

		if ( ! empty( $parsed_url['path'] ) ) {
			$url .= $parsed_url['path'];
		}

		if ( ! empty( $parsed_url['query'] ) ) {
			$url .= '?' . $parsed_url['query'];
		}
	}

	return $url;
}