This hook is called after all must-use and network activated plugins have been loaded. It is called before other plugins are loaded.
The muplugins_loaded action hook fires early, and precedes the plugins_loaded action hook.
There are no arguments passed to this hook.
<?php add_action( 'muplugins_loaded', 'function_name' ); ?>
where "function_name" is the name of the function to be called.
<?php
add_action( 'muplugins_loaded', 'my_plugin_override' );
function my_plugin_override() {
// your code here
}
?>
muplugins_loaded is located in wp-settings.php.