|
|
|
|
Bookmark this on Delicious
Share on Facebook
 Slashdot It!
Digg GNU ReadlineThe readline functions implement an interface to the GNU Readline library. These are functions that provide editable command lines. An example being the way Bash allows you to use the arrow keys to insert characters or scroll through command history. Because of the interactive nature of this library, it will be of little use for writing Web applications, but may be useful when writing scripts used from a command line.
Note:
This extension is not available on Windows platforms. To use the readline functions, you need to install libreadline. You can find libreadline on the home page of the GNU Readline project, at » http://cnswww.cns.cwru.edu/~chet/readline/rltop.php. it's maintained by chet ramey, who's also the author of bash. you can also use these functions with the libedit library, a non-gpl replacement for the readline library. the libedit library is bsd licensed and available for download from » http://www.thrysoee.dk/editline/.
To use these functions you must compile the CGI or CLI version of PHP
with readline support. You need to configure PHP
Table of Contents
Code Examples / Notes » ref.readline14-apr-2002 03:17
[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 ds
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 <?php set_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"; ?> plz
To get all arguments passed to a batch file in one variable rather than using %1 %2 %3 etc; :LOOP if "%1" == "" goto DONE set args=%args% %1 shift goto LOOP :DONE @c:\\php\\cli\\php.exe script.php %args% set args= jewfish
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 $story; } berndt
Some Tricks with the PHP readline Modus http://www.michael-berndt.de/ie/tux/readline.htm david
Readline only reads the window size on startup or on SIGWINCH. This means if the window is resized when not in a readline() call, the next call will have odd behavior due to confusion about the window size. The work-around is to force Readline to re-read the window size by sending it SIGWINCH. This is accomplished using the async interface, which installs the signal handler but returns control to PHP. The following function is a drop-in replacement for readline(), but re-reads the window size every time: <? function xreadline($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; } ?> flobee
re to: ds at NOSPAM dot undesigned dot org dot za cool 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"; joshua
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"); ?> jeffrey
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); jcl atnospam jcl dot name
Even better than 'plz at dont dot spam' in only one line :) : @c:\\php\\cli\\php.exe script.php %* Cheers, Jean-Charles |
Change Language
.NET Functions Apache-specific Functions Alternative PHP Cache Advanced PHP debugger Array Functions Aspell functions [deprecated] BBCode Functions BCMath Arbitrary Precision Mathematics Functions PHP bytecode Compiler Bzip2 Compression Functions Calendar Functions CCVS API Functions [deprecated] Class/Object Functions Classkit Functions ClibPDF Functions [deprecated] COM and .Net (Windows) Crack Functions Character Type Functions CURL Cybercash Payment Functions Credit Mutuel CyberMUT functions Cyrus IMAP administration Functions Date and Time Functions DB++ Functions Database (dbm-style) Abstraction Layer Functions dBase Functions DBM Functions [deprecated] dbx Functions Direct IO Functions Directory Functions DOM Functions DOM XML Functions enchant Functions Error Handling and Logging Functions Exif Functions Expect Functions File Alteration Monitor Functions Forms Data Format Functions Fileinfo Functions filePro Functions Filesystem Functions Filter Functions Firebird/InterBase Functions Firebird/Interbase Functions (PDO_FIREBIRD) FriBiDi Functions FrontBase Functions FTP Functions Function Handling Functions GeoIP Functions Gettext Functions GMP Functions gnupg Functions Net_Gopher Haru PDF Functions hash Functions HTTP Hyperwave Functions Hyperwave API Functions i18n Functions IBM Functions (PDO_IBM) IBM DB2 iconv Functions ID3 Functions IIS Administration Functions Image Functions Imagick Image Library IMAP Informix Functions Informix Functions (PDO_INFORMIX) Ingres II Functions IRC Gateway Functions PHP / Java Integration JSON Functions KADM5 LDAP Functions libxml Functions Lotus Notes Functions LZF Functions Mail Functions Mailparse Functions Mathematical Functions MaxDB PHP Extension MCAL Functions Mcrypt Encryption Functions MCVE (Monetra) Payment Functions Memcache Functions Mhash Functions Mimetype Functions Ming functions for Flash Miscellaneous Functions mnoGoSearch Functions Microsoft SQL Server Functions Microsoft SQL Server and Sybase Functions (PDO_DBLIB) Mohawk Software Session Handler Functions mSQL Functions Multibyte String Functions muscat Functions MySQL Functions MySQL Functions (PDO_MYSQL) MySQL Improved Extension Ncurses Terminal Screen Control Functions Network Functions Newt Functions NSAPI-specific Functions Object Aggregation/Composition Functions Object property and method call overloading Oracle Functions ODBC Functions (Unified) ODBC and DB2 Functions (PDO_ODBC) oggvorbis OpenAL Audio Bindings OpenSSL Functions Oracle Functions [deprecated] Oracle Functions (PDO_OCI) Output Control Functions Ovrimos SQL Functions Paradox File Access Parsekit Functions Process Control Functions Regular Expression Functions (Perl-Compatible) PDF Functions PDO Functions Phar archive stream and classes PHP Options&Information POSIX Functions Regular Expression Functions (POSIX Extended) PostgreSQL Functions PostgreSQL Functions (PDO_PGSQL) Printer Functions Program Execution Functions PostScript document creation Pspell Functions qtdom Functions Radius Rar Functions GNU Readline GNU Recode Functions RPM Header Reading Functions runkit Functions SAM - Simple Asynchronous Messaging Satellite CORBA client extension [deprecated] SCA Functions SDO Functions SDO XML Data Access Service Functions SDO Relational Data Access Service Functions Semaphore SESAM Database Functions PostgreSQL Session Save Handler Session Handling Functions Shared Memory Functions SimpleXML functions SNMP Functions SOAP Functions Socket Functions Standard PHP Library (SPL) Functions SQLite Functions SQLite Functions (PDO_SQLITE) Secure Shell2 Functions Statistics Functions Stream Functions String Functions Subversion Functions Shockwave Flash Functions Swish Functions Sybase Functions TCP Wrappers Functions Tidy Functions Tokenizer Functions Unicode Functions URL Functions Variable Handling Functions Verisign Payflow Pro Functions vpopmail Functions W32api Functions WDDX Functions win32ps Functions win32service Functions xattr Functions xdiff Functions XML Parser Functions XML-RPC Functions XMLReader functions XMLWriter Functions XSL functions XSLT Functions YAZ Functions YP/NIS Functions Zip File Functions Zlib Compression Functions |
