READLINE_CLEAR_HISTORY(3) 1 READLINE_CLEAR_HISTORY(3) readline_clear_history - Clears the historySYNOPSISbool readline_clear_history (void )DESCRIPTIONThis function clears the entire command line history.RETURN VALUESReturns TRUE on success or FALSE on failure. PHP Documentation Group READLINE_CLEAR_HISTORY(3)