Funciones Readline

Readline only reads the window size on startup or on SIGWINCH.  This means if the window is resized when not in a readline() call, the next call will have odd behavior due to confusion about the window size.The work-around is to force Readline to re-read the window size by sending it SIGWINCH.  This is accomplished using the async interface, which installs the signal handler but returns control to PHP.The following function is a drop-in replacement for readline(), but re-reads the window size every time:<?    function xreadline($prompt)    {        global $xreadline, $xreadline_line;        $code = '$GLOBALS["xreadline"] = false;' .                '$GLOBALS["xreadline_line"] = $line;' .                'readline_callback_handler_remove();';        $cb = create_function('$line', $code);        readline_callback_handler_install($prompt, $cb);        $signal = defined("SIGWINCH") ? SIGWINCH : 28;        posix_kill(posix_getpid(), $signal);        $xreadline = true;        while ($xreadline)            readline_callback_read_char();        return is_null($xreadline_line) ? false : $xreadline_line;    }?>

re to: ds at NOSPAM dot undesigned dot org dot zacool program! note when trying to exec() something:in the while loop you need to reset exec() returns or you will get all results of all executions (on my my windows and or cygwin :-( like:<?php// your class prompt()echo "Enter something or 'exit' to quit\n";do {    $cmdline = new prompt();    $buffer = $cmdline->get('shell command: ');// init/ reset first!    $data = null;    $return = null;// now start:    echo "You said: $buffer\n";    if (!empty($buffer)) {        $x = exec($buffer, $data, $return);        print_r($data);    }} while ($buffer !== "exit");echo "Goodbye\n";

Windows.To the current date,  PHP 8.1 64bits under Windows does not support all the functions:supported:readline_add_history                                                                 readline_clear_history                                                               readline_completion_function                                                         readline_info                                                                        readline_list_history                                                                readline_read_history                                                                readline_write_history                                                               readline                                                                             no supported: (the function is not even defined)readline_callback_handler_installreadline_callback_handler_removereadline_callback_read_charreadline_on_new_linereadline_redisplayif you want to read a key in windows (without blocking), you can use the next code:$out='';$ret='';$keys='1234567890abcdefghijklmnopqrstuvwxyz'."á";$default="á";while(true) {    exec("choice /N /C $keys /D $default /T 1",$out,$ret);    if($out[0]!=="á") {        var_dump($out[0]);    }    $out=[];}It is not elegant and it calls choice every 1 second but it does the job (at least with some keys).

There is a simpler way to do a multiline read than above:function multiline() {    while(($in = readline("")) != ".")        $story .= ($PHP_OS == "WINNT") ? "\r\n".$in :                                         "\n".$in;    return $story;}

[Ed. note: you can use fopen("php://stdin", "w") to achieve the same thing, works on both Windows and Unix)]

I wanted to get console input in a PHP script running on windows, so I made a little hack, which is so simple, it is clearly public domain.  What I did was write a C++ program to get a line, then output it.  Then all that is needed is to exec() that program and capture the output - readline() for windows.  The C++ source is as follows:

#include <iostream.h>
#include <string>
void main()
{
    string input;
    cin >> input;
    cout << input;
}

It works wonderfully for my purposes, since I love the PHP language and want to have console input.

Justin Henck

Here's an easy way without readline() if you don't have it compiled in already:   $fp = fopen("php://stdin","r");   $line = rtrim(fgets($fp, 1024);

You can open /dev/tty on unix systems or \con in windows, with ob_implicit_flush(true) to write output unbuffered.  Works like a charm :-)-------------------------------#!/usr/local/bin/php -q<?phpset_time_limit(0);@ob_end_flush();ob_implicit_flush(true);class prompt {  var $tty;  function prompt() {    if (substr(PHP_OS, 0, 3) == "WIN") {      $this->tty = fOpen("\con", "rb");    } else {      if (!($this->tty = fOpen("/dev/tty", "r"))) {        $this->tty = fOpen("php://stdin", "r");      }    }  }  function get($string, $length = 1024) {    echo $string;    $result = trim(fGets($this->tty, $length));    echo "\n";    return $result;  }}echo "Enter something or 'exit' to quit\n";do {  $cmdline = new prompt();  $buffer = $cmdline->get("Something: ");  echo "You said: $buffer\n";} while ($buffer !== "exit");echo "Goodbye\n";?>

Even better than 'plz at dont dot spam' in only one line :) :@c:\\php\\cli\\php.exe script.php %*Cheers,Jean-Charles

Here's an example simple readline-like way to input from command line on windows - the single line is from http://www.phpbuilder.com/columns/darrell20000319.php3, the multiline is something I added...<?function read () {    # 4092 max on win32 fopen    $fp=fopen("php://stdin", "r");    $in=fgets($fp,4094);    fclose($fp);    # strip newline    (PHP_OS == "WINNT") ? ($read = str_replace("\r\n", "", $in)) : ($read = str_replace("\n", "", $in));    return $read;}function multilineread () {    do {        $in = read();        # test exit        if ($in == ".") return $read;        # concat input        (PHP_OS == "WINNT") ? ($read = $read . ($read ? "\r\n" : "") . $in) : ($read = $read . "\n" . $in);    } while ($inp != ".");    return $read;}print("End input with . on line by itself.\n");print("What is your first name?\n");$first_name = multilineread();print("What is your last name?\n");$last_name = read();print("\nHello, $first_name $last_name! Nice to meet you! \n");?>

To get all arguments passed to a batch file in one variablerather than using %1 %2 %3 etc;:LOOPif "%1" == "" goto DONEset args=%args% %1shiftgoto LOOP:DONE@c:\\php\\cli\\php.exe script.php %args%set args=