wpmu_admin_do_redirect() WP 3.0.0

Deprecated in 3.3.0. It is no longer supported and can be removed in future releases. Use wp_redirect() instead.

Redirect a user based on $_GET or $_POST arguments.

The function looks for redirect arguments in the following order:
1) $_GET['ref']
2) $_POST['ref']
3) $_SERVER['HTTP_REFERER']
4) $_GET['redirect']
5) $_POST['redirect']
6) $url

No Hooks.

Return

Nothing (null).

Usage

wpmu_admin_do_redirect( $url );

$url(string)

Redirect URL.
Default: ''

Code of wpmu admin do redirect: wp-includes/ms-deprecated.php ^{WP 5.2.1}

<?php
function wpmu_admin_do_redirect( $url = '' ) {
	_deprecated_function( __FUNCTION__, '3.3.0', 'wp_redirect()' );

	$ref = '';
	if ( isset( $_GET['ref'] ) && isset( $_POST['ref'] ) && $_GET['ref'] !== $_POST['ref'] ) {
		wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );
	} elseif ( isset( $_POST['ref'] ) ) {
		$ref = $_POST[ 'ref' ];
	} elseif ( isset( $_GET['ref'] ) ) {
		$ref = $_GET[ 'ref' ];
	}

	if ( $ref ) {
		$ref = wpmu_admin_redirect_add_updated_param( $ref );
		wp_redirect( $ref );
		exit();
	}
	if ( ! empty( $_SERVER['HTTP_REFERER'] ) ) {
		wp_redirect( $_SERVER['HTTP_REFERER'] );
		exit();
	}

	$url = wpmu_admin_redirect_add_updated_param( $url );
	if ( isset( $_GET['redirect'] ) && isset( $_POST['redirect'] ) && $_GET['redirect'] !== $_POST['redirect'] ) {
		wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );
	} elseif ( isset( $_GET['redirect'] ) ) {
		if ( substr( $_GET['redirect'], 0, 2 ) == 's_' )
			$url .= '&action=blogs&s='. esc_html( substr( $_GET['redirect'], 2 ) );
	} elseif ( isset( $_POST['redirect'] ) ) {
		$url = wpmu_admin_redirect_add_updated_param( $_POST['redirect'] );
	}
	wp_redirect( $url );
	exit();
}