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wpmu_create_blog [ ]

wpmu_create_blog ( $domain, $path, $title, $user_id, $meta = '', $site_id = 1 )
Parameters:
  • (string) $domain The new site's domain.
  • (string) $path The new site's path.
  • (string) $title The new site's title.
  • (int) $user_id The user ID of the new site's admin.
  • (array) $meta Optional. Used to set initial site options.
  • (int) $site_id Optional. Only relevant on multi-network installs.
Uses:
Returns:
  • (mixed) Returns WP_Error object on failure, int $blog_id on success
Defined at:
Codex



Create a site.

This function runs when a user self-registers a new site as well as when a Super Admin creates a new site. Hook to 'wpmu_new_blog' for events that should affect all new sites.

On subdirectory installs, $domain is the same as the main site's domain, and the path is the subdirectory name (eg 'example.com' and '/blog1/'). On subdomain installs, $domain is the new subdomain + root domain (eg 'blog1.example.com'), and $path is '/'.

Source 

function wpmu_create_blog($domain, $path, $title, $user_id, $meta = '', $site_id = 1) {
	$domain = preg_replace( '/\s+/', '', sanitize_user( $domain, true ) );

	if ( is_subdomain_install() )
		$domain = str_replace( '@', '', $domain );

	$title = strip_tags( $title );
	$user_id = (int) $user_id;

	if ( empty($path) )
		$path = '/';

	// Check if the domain has been used already. We should return an error message.
	if ( domain_exists($domain, $path, $site_id) )
		return new WP_Error( 'blog_taken', __( 'Sorry, that site already exists!' ) );

	if ( !defined('WP_INSTALLING') )
		define( 'WP_INSTALLING', true );

	if ( ! $blog_id = insert_blog($domain, $path, $site_id) )
		return new WP_Error('insert_blog', __('Could not create site.'));

	switch_to_blog($blog_id);
	install_blog($blog_id, $title);
	wp_install_defaults($user_id);

	add_user_to_blog($blog_id, $user_id, 'administrator');

	if ( is_array($meta) ) foreach ($meta as $key => $value) {
		if ( $key == 'public' || $key == 'archived' || $key == 'mature' || $key == 'spam' || $key == 'deleted' || $key == 'lang_id' )
			update_blog_status( $blog_id, $key, $value );
		else
			update_option( $key, $value );
	}

	add_option( 'WPLANG', get_site_option( 'WPLANG' ) );
	update_option( 'blog_public', (int)$meta['public'] );

	if ( ! is_super_admin( $user_id ) && ! get_user_meta( $user_id, 'primary_blog', true ) )
		update_user_meta( $user_id, 'primary_blog', $blog_id );

	restore_current_blog();
	do_action( 'wpmu_new_blog', $blog_id, $user_id, $domain, $path, $site_id, $meta );

	return $blog_id;
}

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