PHP 7.0.6 Released

    ncurses_cbreak

    (PHP 4 >= 4.0.7, PHP 5 < 5.3.0, PECL ncurses >= 1.0.0)

    ncurses_cbreak — Switch off input buffering

    Description

    bool ncurses_cbreak ( void )
    Warning

    This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.

    Disables line buffering and character processing (interrupt and flow control characters are unaffected), making characters typed by the user immediately available to the program.

    Return Values

    Returns TRUE or NCURSES_ERR if any error occurred.

    See Also

    User Contributed Notes

    php at kormoc dot com
    10 years ago
    re satoru's post,
    While it's not using cbreak, it sorta is an example. The only difference between raw and cbreak is how control keys are delt with.

    Quoted from the ncurses_programming_howto:
    Normally the terminal driver buffers the characters a user types until a new line or carriage return is encountered. But most programs require that the characters be available as soon as the user types them. The above two functions are used to disable line buffering. The difference between these two functions is in the way control characters like suspend (CTRL-Z), interrupt and quit (CTRL-C) are passed to the program. In the raw() mode these characters are directly passed to the program without generating a signal. In the cbreak() mode these control characters are interpreted as any other character by the terminal driver.
    satoru
    10 years ago
    <?php
    /**************************************
      [WARNING!]
      Your terminal may be uncontrollable.

      [HOW TO EXIT]
      Push space key to terminate raw mode.

      [TESTING]
      Tested with FreeBSD5.3R + PHP5.0.5-CLI.
      The option '--with-ncurses' required.
      **************************************/

          $tty = system("tty");
          $handle = fopen($tty, "r");
      if (!    $handle)
        exit(    "cannot open $tty.\\n");

      print     "Push space key to terminate.\\n";

          ncurses_init();
          ncurses_raw();
      do {
            $ch = fread($handle, 1);
            printf('[%d] ', ord($ch));
      } while (    $ch != " " && ord($ch) != 3);
          ncurses_noraw();
          ncurses_end();
      print     "\\n";

          fclose($handle);
    ?>
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