*/
} elseif ( apply_filters( 'do_mu_upgrade', true ) ) {
$c = get_blog_count();
- // If 50 or fewer sites, run every time. Else, run "about ten percent" of the time. Shh, don't check that math.
+
+ /*
+ * If there are 50 or fewer sites, run every time. Otherwise, throttle to reduce load:
+ * attempt to do no more than threshold value, with some +/- allowed.
+ */
if ( $c <= 50 || ( $c > 50 && mt_rand( 0, (int)( $c / 50 ) ) == 1 ) ) {
require_once( ABSPATH . WPINC . '/http.php' );
$response = wp_remote_get( admin_url( 'upgrade.php?step=1' ), array( 'timeout' => 120, 'httpversion' => '1.1' ) );
wp_enqueue_script( 'common' );
+// $pagenow is set in vars.php
+// $wp_importers is sometimes set in wp-admin/includes/import.php
+//
+// The remaining variables are imported as globals elsewhere,
+// declared as globals here
+global $pagenow, $wp_importers, $hook_suffix, $plugin_page, $typenow, $taxnow;
+
+$page_hook = null;
+
$editing = false;
if ( isset($_GET['page']) ) {
}
$hook_suffix = '';
-if ( isset($page_hook) )
+if ( isset( $page_hook ) ) {
$hook_suffix = $page_hook;
-else if ( isset($plugin_page) )
+} elseif ( isset( $plugin_page ) ) {
$hook_suffix = $plugin_page;
-else if ( isset($pagenow) )
+} elseif ( isset( $pagenow ) ) {
$hook_suffix = $pagenow;
+}
set_current_screen();
* The load-* hook fires in a number of contexts. This hook is for plugin screens
* where a callback is provided when the screen is registered.
*
- * The dynamic portion of the hook name, $page_hook, refers to a mixture of plugin
+ * The dynamic portion of the hook name, `$page_hook`, refers to a mixture of plugin
* page information including:
* 1. The page type. If the plugin page is registered as a submenu page, such as for
* Settings, the page type would be 'settings'. Otherwise the type is 'toplevel'.
* 2. A separator of '_page_'.
* 3. The plugin basename minus the file extension.
*
- * Together, the three parts form the $page_hook. Citing the example above,
+ * Together, the three parts form the `$page_hook`. Citing the example above,
* the hook name used would be 'load-settings_page_pluginbasename'.
*
* @see get_plugin_page_hook()
/**
* Used to call the registered callback for a plugin screen.
*
- * @internal
+ * @ignore
* @since 1.5.0
*/
do_action( $page_hook );
* The load-* hook fires in a number of contexts. This hook is for plugin screens
* where the file to load is directly included, rather than the use of a function.
*
- * The dynamic portion of the hook name, $plugin_page, refers to the plugin basename.
+ * The dynamic portion of the hook name, `$plugin_page`, refers to the plugin basename.
*
* @see plugin_basename()
*
include(ABSPATH . 'wp-admin/admin-footer.php');
exit();
-} else if (isset($_GET['import'])) {
+} elseif ( isset( $_GET['import'] ) ) {
$importer = $_GET['import'];
/**
* Fires before an importer screen is loaded.
*
- * The dynamic portion of the hook name, $importer, refers to the importer slug.
+ * The dynamic portion of the hook name, `$importer`, refers to the importer slug.
*
* @since 3.5.0
*/
*
* The load-* hook fires in a number of contexts. This hook is for core screens.
*
- * The dynamic portion of the hook name, $pagenow, is a global variable
+ * The dynamic portion of the hook name, `$pagenow`, is a global variable
* referring to the filename of the current page, such as 'admin.php',
* 'post-new.php' etc. A complete hook for the latter would be
* 'load-post-new.php'.
/**
* Fires when an 'action' request variable is sent.
*
- * The dynamic portion of the hook name, $_REQUEST['action'],
- * refers to the action derived from the GET or POST request.
+ * The dynamic portion of the hook name, `$_REQUEST['action']`,
+ * refers to the action derived from the `GET` or `POST` request.
*
* @since 2.6.0
*/