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LXXXV. GNU ReadlineIntroduzione
The 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 meant to be run from a
shell.
Requisiti
To use the readline functions, you need to install libreadline. You can
find libreadline on the home page of the GNU Readline project, at
.
It's maintained by Chet Ramey, who's also the author of Bash.
Istallazione
To use this functions you must compile PHP with readline support. You
need to configure PHP --with-readline.
Configurazione RuntimeQuesta estensione non definisce
alcuna direttiva di configurazione Resource TypeQuesta estensione non definisce alcun tipo di risorsa. Costanti PredefiniteQuesta estensione non definisce alcuna costante.
User Contributed Notes
GNU Readline |
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[email protected]
04-Mar-2002 05:11 |
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You'll probably need the --with-readline directive when configuring php to
have the readline() functions available.
If you've installed the
readline libraries in /usr/local,
add:
--with-readline=/usr/local
to your ./configure command.
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14-Apr-2002 02:17 |
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[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
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joshua at neocodesoftware.com
21-Apr-2002 10:17 |
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Here's an example simple readline-like way to input from command line on
windows - the single line is from
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 $last_name! Nice to meet
you! \n");
?>
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[email protected]
10-Jun-2002 11:05 |
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There is a simpler way to do a multiline read than above:
function
multiline() {
while(($in = readline("")) !=
".")
$story .= ($PHP_OS == "WINNT") ?
"\r\n".$in :
"\n".$in;
return $story;
}
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