Exec() and 'keyboard' input

[bwgames]

Hi there,

I have a script that takes two inputs from the keyboard to change some
settings on some equipment. I would usually run this as e.g.

ben@srv001:/$ change-settings<enter>
new-setting 1 <enter>
new-setting2 <enter>
Settings successfully changed
ben@srv001:/$

I want to automate this from a PHP script (it will be for my use only
with restricted access via .htaccess etc, so security is not a major
issue).

I can do system or exec("change-settings"); ok, but how do I 'enter'
the input from a php-script? The new-settings1 and 2 will be stored
in variables in PHP.

Thanks,

Ben

[Janwillem Borleffs]

I can do system or exec("change-settings"); ok, but how do I 'enter'

the input from a php-script? The new-settings1 and 2 will be stored
in variables in PHP.

Two possibilities:

#1:

<?php

$buf = '';
$fp = fopen('php://stdin', 'r');
while (!feof($fp)) {
$buf .= fgets($fp, 1024);
}

print "You wrote: $buf";

?>

(when finished, exit with CRTL+Z+<ENTER>)
#2

<?php

$buf = '';
$fp = fopen('php://stdin', 'r');
while (trim(($line = fgets($fp, 1024)))) {
$buf .= $line;
}

print "You wrote: $buf";

?>

(when finished, just hot <ENTERtwice)
HTH;
JW

[C. (http://symcbean.blogspot.com/)]

On 7 Oct, 22:20, "Janwillem Borleffs" <j...@jwscripts .comwrote:

I can do system or exec("change-settings"); ok, but how do I 'enter'
the input from a php-script? The new-settings1 and 2 will be stored
in variables in PHP.

Two possibilities:

#1:

<?php

$buf = '';
$fp = fopen('php://stdin', 'r');
while (!feof($fp)) {
$buf .= fgets($fp, 1024);

}
print "You wrote: $buf";

?>

(when finished, exit with CRTL+Z+<ENTER>)

#2

<?php

$buf = '';
$fp = fopen('php://stdin', 'r');
while (trim(($line = fgets($fp, 1024)))) {
$buf .= $line;

}
print "You wrote: $buf";

?>

(when finished, just hot <ENTERtwice)

HTH;
JW

This is for getting keyboard input into PHP not sending keyboard input
to the spawned process - a complete solution would use proc_open() to
be able to process stdout and stderr from the spawned process as well
as sending instructions, but if simplicity is required, then just
write directly to stdin:

$fp=popen("/path/to/change-settings", 'w');
if ($fp) {
fputs($fp,"new-setting 1\n");
fputs($fp,"new-setting 2\n");
fclose($fp);
}

Alternatively write the new setting to a file and redirect stdin for
the command to the file:

$outcome=`/path/to/change-settings <file_I_wrote `;
C.

[Brendan Gillatt]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

bw*****@gmail.c om wrote:

Hi there,

I have a script that takes two inputs from the keyboard to change some
settings on some equipment. I would usually run this as e.g.

ben@srv001:/$ change-settings<enter>
new-setting 1 <enter>
new-setting2 <enter>
Settings successfully changed
ben@srv001:/$

I want to automate this from a PHP script (it will be for my use only
with restricted access via .htaccess etc, so security is not a major
issue).

I can do system or exec("change-settings"); ok, but how do I 'enter'
the input from a php-script? The new-settings1 and 2 will be stored
in variables in PHP.

Thanks,

Ben

Depending on your OS you could echo the variables in:

# change-settings < "settings 1", etc

- --
Brendan Gillatt
brendan {at} brendangillatt {dot} co {dot} uk
http://www.brendangillatt.co.uk
PGP Key: http://pgp.mit.edu:11371/pks/lookup?...rch=0xBACD7433
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.3 (MingW32)

iD8DBQFHCl/ikA9dCbrNdDMRAo eRAJ4k/lqGpEAV8A2tjR7W O6C8bJwOrACfTfr w
T334hZ+q0EgWgk8 vaWjOKvM=
=Y1NZ
-----END PGP SIGNATURE-----