enable_callback
enable_callback($enable=true,$refresh=true); - allow or prohibit linking a web page to non-HTML5 browser parameters. It is recommended to allow it if the page is loaded incorrectly (for example, Yandex mail) and prohibit it to increase anonymity when the script is running.
To check whether callback is allowed or prohibited in the browser, you can use this function is_enable_callback.
the input Function accepts parameters:
$enable – allow (true) or deny (false)$refresh – should the page be updated (true) or not (false) after this command
After testing, the function returns the result of its work to the script :
true – completed successfully
false – failed