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wp_normalize_site_data( array $data )

Normalizes data for a site prior to inserting or updating in the database.

Parameters

$data

(array) (Required) Associative array of site data passed to the respective function. See wp_insert_site() for the possibly included data.

Return

(array) Normalized site data.

Source

File: wp-includes/ms-site.php 

function wp_normalize_site_data( $data ) {
	// Sanitize domain if passed.
	if ( array_key_exists( 'domain', $data ) ) {
		$data['domain'] = trim( $data['domain'] );
		$data['domain'] = preg_replace( '/\s+/', '', sanitize_user( $data['domain'], true ) );
		if ( is_subdomain_install() ) {
			$data['domain'] = str_replace( '@', '', $data['domain'] );
		}
	}

	// Sanitize path if passed.
	if ( array_key_exists( 'path', $data ) ) {
		$data['path'] = trailingslashit( '/' . trim( $data['path'], '/' ) );
	}

	// Sanitize network ID if passed.
	if ( array_key_exists( 'network_id', $data ) ) {
		$data['network_id'] = (int) $data['network_id'];
	}

	// Sanitize status fields if passed.
	$status_fields = array( 'public', 'archived', 'mature', 'spam', 'deleted' );
	foreach ( $status_fields as $status_field ) {
		if ( array_key_exists( $status_field, $data ) ) {
			$data[ $status_field ] = (int) $data[ $status_field ];
		}
	}

	// Strip date fields if empty.
	$date_fields = array( 'registered', 'last_updated' );
	foreach ( $date_fields as $date_field ) {
		if ( ! array_key_exists( $date_field, $data ) ) {
			continue;
		}

		if ( empty( $data[ $date_field ] ) || '0000-00-00 00:00:00' === $data[ $date_field ] ) {
			unset( $data[ $date_field ] );
		}
	}

	return $data;
}

Uses

Uses Description
wp-includes/formatting.php: trailingslashit()

Appends a trailing slash.
wp-includes/formatting.php: sanitize_user()

Sanitizes a username, stripping out unsafe characters.
wp-includes/ms-load.php: is_subdomain_install()

Whether a subdomain configuration is enabled.

Changelog

Version Description
5.1.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/wp_normalize_site_data