Definition:
function wp_upgrade() {}
Run WordPress Upgrade functions.
Source code
function wp_upgrade() {
global $wp_current_db_version, $wp_db_version, $wpdb;
$wp_current_db_version = __get_option('db_version');
// We are up-to-date. Nothing to do.
if ( $wp_db_version == $wp_current_db_version )
return;
if ( ! is_blog_installed() )
return;
wp_check_mysql_version();
wp_cache_flush();
pre_schema_upgrade();
make_db_current_silent();
upgrade_all();
if ( is_multisite() && is_main_site() )
upgrade_network();
wp_cache_flush();
if ( is_multisite() ) {
if ( $wpdb->get_row( "SELECT blog_id FROM {$wpdb->blog_versions} WHERE blog_id = '{$wpdb->blogid}'" ) )
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February 12, 2011 


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