ncurses_getch

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

ncurses_getchRead a character from keyboard

Description

int ncurses_getch ( 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.

Warning

This function is currently not documented; only its argument list is available.

Коментарии

A custom php ncurses_getstr function.. 

<?php

function ncurses_getstr($strlen){
    for (
$x=0;$x<$strlen;$x++){
       
$string .= chr(ncurses_getch());
    }
    return 
$string;
}

ncurses_init();
ncurses_addstr(ncurses_getstr(6));
ncurses_refresh();
ncurses_getch();
ncurses_end();

?>
2002-09-13 16:40:15
http://php5.kiev.ua/manual/ru/function.ncurses-getch.html
When using getch to capture KEY_* events remember that the keypad is arranged like this:

+-----+------+-------+
| A1  |  up  |  A3   |
+-----+------+-------+
|left |  B2  | right |
+-----+------+-------+
| C1  | down |    C3  |
+-----+------+-------+

You use has_key to capture these and act upon them.

man curs_getch for more info.
2002-12-16 14:29:30
http://php5.kiev.ua/manual/ru/function.ncurses-getch.html
After banging my head over this for awhile, I discovered, you must use ncurses_keypad($window, true); to enable the arrow keys and f keys to work correctly.
2005-11-22 17:45:46
http://php5.kiev.ua/manual/ru/function.ncurses-getch.html
While function ncurses_nodelay() is still not implemented and if you need a non-blocking getch,
following code might help.

<?php
$init 
ncurses_init();
$full ncurses_newwin (0,0,0,0);
ncurses_wborder($full,0,0,0,0,0,0,0,0);
ncurses_wrefresh($full);

$running true;
$fp fopen("php://stdin","r");     //open direct input stream for reading
stream_set_blocking($fp,0);        //set non-blocking mode

while ($running) {
  while ((
$buf fgets($fp4096)) != false) {  //fgets is required if we want to handle escape sequenced keys
     
$buffer .= $buf;
  }
  if (
$buffer != "") {
     switch (
$buffer) {       
       case 
" ": {            //exit on space key
         
ncurses_end();
        exit;         
       }
       default: {
         
ncurses_mvwaddstr($full,2,2,"$buffer");  //display input
       
}
     }
   
$buffer ""//empty buffer
   
}

 
// You can do something interesting here, while we're not waiting for an input
 
ncurses_mvwaddstr($full,4,4,microtime(true));
 
ncurses_wrefresh($full); 

 
usleep(1); //reduce cpu usage
}
?>
2006-11-14 04:11:25
http://php5.kiev.ua/manual/ru/function.ncurses-getch.html
Автор:
ncurses_getch() will block if there is no input available. Using fgets() together with stream_set_blocking() has been proposed for non-blocking input, however, fgets() returns escape sequences for cursor, function, and other special keys. Interpreting these is not trivial as the escape sequences depend on the terminal/emulation used.

A possible solution is to use stream_select() to find out whether input is available and then read it with ncurses_getch().

<?php
function getch_nonblock($timeout) {
   
$read = array(STDIN);
   
$null null;    // stream_select() uses references, thus variables are necessary for the first 3 parameters
   
if(stream_select($read,$null,$null,floor($timeout 1000000),$timeout 1000000) != 1) return null;
    return 
ncurses_getch();
}

while(
true) {
   
$key getch_nonblock(1000000);
    if(
is_null($key)) {
       
// do something useful here
       
continue;
    }
    if(
$key == NCURSES_KEY_F10) break;    // Quit on F10
}
?>

Low timeout values can yield high CPU usage of your script, so set the timeout as high as possible for your application.
2014-03-11 23:50:03
http://php5.kiev.ua/manual/ru/function.ncurses-getch.html

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