(PHP 5 >= 5.1.0, PHP 7)
readline_callback_handler_remove — Removes a previously installed callback handler and restores terminal settings
readline_callback_handler_remove ( ) : bool
Removes a previously installed callback handler and restores terminal settings.
 Returns true if a previously installed callback handler was removed, or false if one could not be found. 
See readline_callback_handler_install() for an example of how to use the readline callback interface.
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    https://www.php.net/manual/en/function.readline-callback-handler-remove.php