PHP :: Shell_exec() Return Nothing

Shell_exec Help Please
I have an ensim server which provides me with about 20 scripts in the filesystem that allows you to create sites, edit them, lookup domains, etc... I am running a few of these scripts from a cron I made and that all works fine but I can't seem to find a function (like shell_exec) that allows me to get the text returned from the function. When I run the script from CLI and i run the script using either system(), exec(), passthru(), or shell_exec() it just displays the results, and I didn't tell it to, it just does it on it's own bit. My question is how can i trap the results so I can anylize them.

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CLI And Shell_exec()
I am using Imagemagick and some other apps via command line calls (if I stated that correctly, hope so).I run a WinXP server, Sambar 5.3. I use this format for my typical call: PHP Code:

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Ssh With Shell_exec
I'm trying to 'ssh' into another machine, run a small script and fetch
it's output, using shell_exec(). The problem is, it takes AGES to run
ssh and I don't know what's happening. If I try 'ssh'ing manually on the
shell, it takes a microsecond to fetch the result, whereas shell_exec
takes very very long and I don't know how to debug the problem. That's
problem number one: How do I tell what's happening and why is it taking
so long?

Problem two: To be able to establish a password-less ssh connection, I
generated a public key/private key pair for the two machines and stored
it in my /home/username/.ssh directory. Okay, I know apache/php (by the
way I'm running apache with PHP 4.2.3) won't know where to find it so I
presumed /opt/apache/.ssh would be the best place to copy the ".ssh"
directory (i.e. apache's installed in /opt/apache). Now the problem is,
I couldn't get shell_exec to run ssh in a password less mode. After a
little while I realized that it was looking for the private key in
"/.ssh" (i.e. the root directory)! How come? How do I change it so that
it looks for the .ssh directory elsewhere? (I mean, how can I run a
command using shell_exec and ask it to use the "home" directory of the
"apache" user, which normally is /path/to/apache)? The last time I
installed php & apache, I remember it looked for the .ssh directory in
the /opt/apache/.ssh directory and now it has changed. also, it was much
faster the last time. Now for some reason it's EXTREMELY slow (takes a
whole minute to run ssh) and looks for the .ssh directory on the root
(and I dont want to place that directory there).

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SSL Through Shell_exec
I've looked at the php documentation for openSSL, but found that the module seemed insufficient for purposes like checking a certificate's expiration date on another server. That is, I could not find a function to run "openssl s_client -connect", so I decided to instead achieve it through shell_exec.
This is a three step process:

1) Check the openssl version via shell_exec('openssl version -v'); just to confirm that openssl is installed and runs properly.
This returns "OpenSSL 0.9.7a Feb 19 2003 "

2) Connect to the remote server. As a test, I decided to use www.gna.org, since I know they use a certificate. shell_exec('openssl s_client -connect www.gna.org:4433');

This pauses for about 20 seconds, and then returns FALSE. I've tried various combinations, like removing the -connect argument but leaving the server name in, removing the port, including the https:// part, removing the www, and so on. I have not tried a port other than 4433 yet (I wouldn't know what other part to use). All other methods returned FALSE immediately. This is the only method that delays 20 seconds, which indicates to me that I'm close.

3) Fetch certificate expiration date via shell_exec('openssl x509 -enddate'); although this obviously returns FALSE because I have not been able to connect to the server yet.

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Cd With Shell_exec
I have the following script:

$c_path = "/absolute_path_to_some_directory";
$test_cmd = "cd $c_path; ls";
$test_res = shell_exec($test_cmd);

it always lists the contents of the directory where it is placed, rather than the contents of some_directory. In other words, it appears that cd is not working. I have verified that path and permissions are correct. PHP is version 4.3.9.

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Shell_exec
I want to copy file from remote machine to local machine using PHP. On both machines Linux operating system present. The code is.

$result=shell_exec("scp admin@192.168.1.236:/mnt/disc/hda/part1/demo/
conn /opt/lampp/htdocs/upload/");

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Basic Shell_exec
I am trying to use shell_exec to do some scheduled clearing up but can't get it working.
PHP Code:

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Exec Or Shell_exec
I am trying to us shell_exec and keep getting an error. I do have safe_mode = off also.
Code:

if ($publish == "yes")
{
$command = "e:scriptspublish.bat";
$result=shell_exec($command); }

The publish.bat file does work and I have proper permissions set in windows, I set everyone full access. Oh, Windows server, IIS6.0, PHP. Error is as follows:

Warning: shell_exec() [function.shell-exec]: Unable to execute 'e:scriptspublish.bat' in

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Shell_exec Need Any Configuration?
Anyone can provide me information on how to did the configuration in the unix there to make the shell_exec() can work properly?

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Shell_exec, Python
Read some garbage tutorial on About.com about embedding my python script inside PHP with shell_exec() but it's not working, as I expected.

Does some kind of configuration have to occur first for this to happen? I have python installed but I can't run it from anywhere at my dos prompt. I have to be in the python25 folder (i installed using a windows installer on python.org) for it to work.

I'm running IIS, Win2000, Python 2.5.1, PHP 5.2.3

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Shell_exec On LightTPD
I've got a very simple script with shell_exec that's giving me a headache! My server is a NetBSD machine running LightTPD (1.4.8nb1) and php (5.1.1nb2).

I've got the file dummy.php with the following content:

<?php
error_reporting(E_ALL);
$res = shell_exec("pwd 2>&1");
echo $res;
?>

When I access this file through a browser i can't see any output:

http://my.url/dummy.php results in a blank page that loads in no time! No error messages, neither output by the browser or in the log files (php.log and LightTPD's error.log).

When I use the terminal on the servern it all works fine:

php /path/to/wwwroot/dummy.php gives me the working directory. Doesn't matter from which working directory I execute the command, or which user (I've tried the LightTPD user aswell). It works every time!

safe_mode is off and there are no disabled_functions!

I've asked around in LightTPD forums, but they say it's a PHP problem. So, I've asked around in (other) PHP forums but noone seems to have any ideas how to solve this!
Perhaps there are expert users here that can help me, or at least redirect me to some other expert forum.

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Specifying Paths Using Shell_exec
i use xampplite locally, winxp.

from PHP, this creates a blank mydump.sql file:

shell_exec("mysqldump --allow-keywords --opt -uroot mydb > mydump.sql");
but this works fine:

shell_exec("c:xampplitemysqlinmysqldump --allow-keywords --opt -uroot mydb > mydump.sql");

but if i use the second one on my pages, im afraid the code might not work anymore when i transfer the site to my server, because of the path. any suggestions???

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Exec()-shell_exec
my server: apache2/php5 and win2k3. I'm able to use shell_exec or exec for dos command that doesn't require auth. I would like to exec certain dos command under "domainuser" "password" .So I'll be able to access remote computer etc...

example:
echo shell_exec(find /i "SomeDataImLookingFor" "RemoteWorkstationc$ ext.txt)

if i use this command in a dosshell under my user session it will return data.Of course if i execute this with PHP on the server with the phpserver account it won't function.

I have been looking for a while on google and forums but i can't find it ,i just need someone to point me to the right page/post/.

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Shell_exec - Cd Is Not Working
I have the following script:

$c_path = "/absolute_path_to_some_directory";
$test_cmd = "cd $c_path; ls";
$test_res = shell_exec($test_cmd);

Regardless of where I put the script, when executed, it always lists the contents of the
directory where it is placed, rather than the contents of the some_directory. In other words,it appears that cd is not working. I have verified that path and permissions are correct. PHP is version 4.3.9. What's wrong ?

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Shell_exec( ) Function
i trying to use shell_exec on a unix-type platform and can't seem to get it to work. Can anyone help me with the shell_exec command problem? below is the coding of my:

<?php

$output=shell_exec('ll -lart');

echo "$output";
?>

suppose when i run this two line of php coding, there should be a output displayed. but no output displayed.

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Exec And Shell_exec
I'm new to running exec commands on php. I've had ffmpeg installed on my server, at /usr/local/bin/ffmpeg (a cmd line video decoder). It's a linux server, running php5.
From looking around the internet, I came up with this code to run it: Code:

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Shell_exec On The Localhost?
im expecting notepad to open up when I run the on the localhost???/ But its not

<?php
shell_exec('c:windows
notepad.exe');
?>

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Shell_exec And Variables
I'm trying to execute a shell command within a loop to fetch a filename that is stored in an array, but it's not substituting the array with the contents of the array. Here's what I have: Code:

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Shell_exec() Output
I am trying to get information from a shell on my server by using shell_exec() but the outputted data is not formatted and I cannot for the life of me figure out how to make the output appear how I want it. For example if I do a whois query I get the full output with returns so it is all dumped on 1 line.

Is there a way to make the outputted data appear the same as if I had performed the same query using SSH? Is there a way to make data from a traceroute appear line by line instead of waiting for the query to execute completly before dumping the data? I am assuming it can be done with Java but I am not sure.

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Output From Shell_exec
i'm having trouble with shell_exec. according to php.net the output of the command is returned by shell_exec(), but this is not the case. i've tried exec,passthru and system but can't get the output into a variable. PHP Code:

$ffmpeg = escapeshellcmd('ffmpeg -i "'.$uploadPath['orgVideo'].$org.'"');
$tmp = shell_exec($ffmpeg);Â Â Â Â Â Â Â Â
echo "

";
print_r($tmp);
echo "

"; .....

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Shell_exec Not Working On Win2K3
We have PHP 4 installed on Windows 2003 with Apache 2, and the
shell_exec has mysteriously stopped working - it hangs the page rather
then returning anything.

To check it out, I tried shell_exec("dir") which works fine on the
development machine, but not on the live server.

I'm guessing the network guys have done something to the security of
the live server that would cause this - but it's very strange; why
would Apache (running under the default system account) not allow PHP
to run shell_exec statements?

I have checked PHP and it's not in safe mode.

I'm a bit stuck -

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Shell_exec Causing CGI ERROR
I have a php page that needs to call a batch script. My test script
has one line: echo test.

I am running Win2003 Server, IIS, and php 4.3.10.

When I first tried running my php script I got an error that said
"unable to execute ...". Then I granted the IIS user execute
privledges to cmd.exe (I know, I know ... security risk).

Once I did that, my script gives me a CGI ERROR - something about http
headers.

I've scoured google groups and come up with nothing that works. I
tried one solution that uses an executable called bgrun.exe. That exe
calls my batch script - still no luck. I've tried exec() and
shell_exec(). No difference. I've tried saving the result to a
variable and not. No difference.

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Shell_exec And Perl::Expect.pm
I have a perl script that I'm calling using php's shell_exec that uses
an expect module to go to another system to pull tiff files. The php
perl combination works great when I launch from the commandline:

$php docpull.php

I get the files I want. Everything is perfect.

When I run docpull.php through the web server I get to the expect call
in the perl script where the password is passed and the script fails.
No error in any of the logs or return from either php or perl.

I believe that its an environment issue regarding how php is run through
the web server and what the expect module from perl needs for a pty. I
think this is the case because I can see the scp command output that
perl expect is generating gets to the password but after that there is
no error. Expect needs to have a pty to work with and I think that when
I run through the command line I have one but when I run through apache
I lose access to ptys.

Permissions don't seem to be a problem because I've set up all of the
directories involved with uncomfortably open perms and I've run the
command line version as the Apache user.

I'm reaching at this point. Because of another server limitation I'm
stuck with php 4 and Apache 1.3 for the time being. If anyone has any
other suggestions for pulling files from a remote server I'd be happy to
give them a try, however, the scp with expect will solve lots of other
problems I'll have to deal with.

I'm on slackware linux 10.2

Apache/1.3.33 (Unix)

PHP 4.4.1 (cli) (built: Dec 21 2005 03:44:49)
Copyright (c) 1997-2004 The PHP Group
Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies
with Xdebug v2.0.0beta5, Copyright (c) 2002, 2003, 2004, 2005, by
Derick Rethans

This is perl, v5.8.7 built for i486-linux

The expect module I'm using is Expect-1.20

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Shell_exec() Works Randomly
In another post I told about PHP not being able to create dates earlier than
1970, so until I can get PHP to do so, I am using a small perlscript to do it.
It looks like this:

//$in[date]*is something like "1943-10-12";

$unixtime = shell_exec("bin/converttime.pl $in[date]");

Problem is, this fails once ever twenty times or so - shell_exec() doesn't
return anything. This is true of another place where I use shell_exec() to run
/usr/bin/cal so I don't think the problem is with the application I am trying
to execute.

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Shell_exec() Server (fedora 3.1)
i have full access to the shell of the server (fedora 3.1) but running this code in a php file on xampp server that i have on the same server , i am not getting the output even when i am trying to pipe the output to an html file . Code:

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Problem: Exec() And Shell_exec()
I've got the following problem: exec() and shell_exec(), etc. don't give anything back, just the error code 127 For example, the following script:

<?php
exec("cat ./test", $lines, $result);

// or exec("./cat ./test", $lines, $result);
echo "result = $result<br>";
echo "Lines<br>
";
foreach ($lines as $k => $v) {
echo "k=$k v=$v<br>
";
}
?>

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Capture Shell_exec Output With Newlines
I am using shell_exec() to execute an external program, but I can't figure out how to capture all the output with new lines. I'm doing something like this: PHP Code:

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Calling A Java Program With Shell_exec()
I couldn't compile php with java support on Mac OS X so I thought I'd
call my java program with shell_exec(). It does work for simple programs
("hello world") but if the program gets more complex php just gets back
an empty string (although on the command line the java program prints
out what I want).

Any ideas why this happens?

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Shell_exec And Output Catching Problem
I have a problem with shell_exec. Following code works fine: PHP Code:

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Output Of Shell_exec Has Block Characters
I am doing a shell_exec that calls an expect script from the shell. The output that I get back from calling shell_exec has rectangular blocks in a lot of the output. I was wondering if anyone knows what causes these, and how to get rid of them.

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Shell_exec() Command - Linux's Shell
I've came up with an issue when trying to work on Linux's shell using PHP
it seems to work when I issue the following commands, shell_exec("iptables -h");, shell_exec("ls"); and shell_exec("ifconfig");

however when I'm trying to do something like this, shell_exec("iptables -L") or shell_exec("iptables restart"); it doesnt seem to work.

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Exec(), System(), Shell_exec(), Etc + Nmap
i'm trying to create a script that executes nmap from my server, then displays the output.

i've tried:

$output = passthru('nmap -v -A'.' $ip');
$output = shell_exec('nmap -v -A'.' $ip');
system('nmap -v -A'.' $ip');

the problem i'm having is that using the above methods i only get the first line of output, ie.

Starting Nmap 4.20 ( http://insecure.org ) at 2007-08-31 21:46 CST

and nothing else. i've managed to find a way around it by sending the nmap output to a textfile, the using file_get_contents() to pull the data back in:

exec('nmap -v -A '.$ip.' > /usr/local/www/apache22/data/nmap/'.$ip.'.html');
$file = "/usr/local/www/apache22/data/nmap/$ip.html";
$result = file_get_contents($file);
echo "(pre)$result(/pre)";

that works perfectly, but i'd rather not be writing anything to the drive. i guess the problem might be that nmap takes about 5-10 seconds to do its scan, and for some reason php doesn't want to wait that long, i really have no idea. can it be made to work without needing to write to files?

and for the curious minds, i'm not doing anything dodgy, i just wanted an online tool i could access from any computer to test networks i support .

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Shell_exec Background Process *Windows*
I am trying to get a shell_exec command to run in the background. So far I have tried:

$ret = shell_exec($ffmpegcmd1." >NUL 2>&1");$ret = shell_exec($ffmpegcmd1." >NUL 2>&1 &");$ret = shell_exec($ffmpegcmd1." >NUL");

without any luck.

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Can't Execute Mail() Or Shell_exec, Safe_mode Is OFF.
I'm having a problem executing external commands when the code is executed through the web server (user: www). If I execute the scripts as a user other than www, they all work fine. PHP's safe_mode is OFF.

For example, I can send mail in a script when executed in the shell, but the same script when executed through the browser (i.e, using the web server) fails.

The same happens with shell_exec.

I've verified that other users can execute the scripts. PHP is allowed to create and delete files and all sorts of other things, but calling external commands doesn't work:

Here is the debug output from ZDE when trying to send mail:

Debug Warning: /includes/HSForms.class.php line 584 - mail(): Could not execute mail delivery program '/usr/sbin/sendmail -t -i '

The sendmail binary has proper privileges... so as far as I can tell, this is not being allowed before that is even tested.

To top it all off, this was ALL working great last week.

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Shell_exec Returns Permission Denied
Is it possible to run shell_exec on a file owned by root:wheel if the user executing it is admin? Code:

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Shell_exec('service Dhcpd Restart')
i'm trying to run this shell command from inside my php program

$output = shell_exec('service dhcpd restart');
echo "<pre>$output</pre>";

this is the output i get:

Shutting down dhcpd: [FAILED]
Starting dhcpd:

that's it.... and when i run it from the shell directly it works fine.. any ideas?

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Return False Or Return True
PHP5. Class, Member function.

"return false;" or "return true;"

When checked in the code invoking the method nothing is returned. If I change to "return(0);" or "return(1);" then it works fine, and the value is returned ok although obviously not technically a boolean. I have tried all sorts, from

if ( memberfunction() ) {
if ( $val = memberfunction() ) {
$val = false;
$val = memberfunction();
......

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Exec, Shell_exec, System, And Passthru Not Working At All
Can't get these commands to work! The following page simply doesn't
finish loading ( Waiting... Opening... :-( )

<?php echo system("dir"); ?>

The same for <?php echo exec("dir"); ?> or <?php echo
shell_exec("dir"); ?>, etc...

I'm running Apache 2.0.55 & PHP 5.0.5 with Zend Optimizer v2.5.10 on
windows XP SP2.

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Shell_exec :: Create A .pdf From A Series Of .tiff Images
I am trying to create a .pdf from a series of .tiff images. What images are selected is the product of a query (from Oracle), not a pick-list or traditional means. This is running on Linux so two tools at my disposal are CPTIFF which puts several .tiff images into one file and TIFF2PDF, which takes the output of CPTIFF and creates a .pdf from it. The use of the app will always produce a pdf with multiple images.

What I need to be able to do is feed the result of the query to CPTIFF and then the result of CPTIFF to TIFF2PDF. Something like:

shell_exec('cptiff image1.tiff image2.tiff image3.tiff all_images.tif');
shell_exec('tiff2pdf -o output.pdf all_images.tif');

The problem: How do I feed the query result to cptiff as a single line separated by blanks. I am used to looping through and creating a table as output, not feeding the results to the OS.

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Exec Or Shell_exec For Dumping MySql Info?
I'm trying to figure out how to export info from a Mysql database, using PHP to manage the export, as phpMyAdmin manages to do. I'm guessing I need to run a shell script that looks like this: mysqldump -u username -ppassword database_name FILE.sql

and I need to call this shell script using one of the functions on this page: Code:

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Shell_exec Using System Tools - Wait For Process To Finish
I have a problem that hopefuly someone here knows the answer to. I want to do a shell_exec command from PHP.

I then want to continue with the script when the shell program is finished with what it does. Problem here is, that will take approximately one hour. How do I make the script wait until the program that I call in shell_exec is finished?

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Exec And Shell_exec Not Executing Batch File Properly
I am running Apache and PHP on windows XP. Latest versions of them all. I am trying to execute a simple .bat batch file that simply copies 4 files from one location to the batch files location.

The php exec command runs like this:
V:Corehtdocswp ransfer.bat Y:folder

here the batch file is executed and the command following is thrown into the batch file to specify where the files that need to be copied are.

The Y: directory is in windows considered to be a network drive, although it is really just a folder on the same machine, i did this because there are spaces in the folder names on its way to where I need the information copied from i.e. "Program Files"

When I run this in the command prompt by entering this in manually it runs perfectly. However when running exec in the PHP script nothing happens; when I run shell_exec it gives me the output and it shows that every line in the batch file is executed however it does not actually copy anything.

Looking into my apache error log I see that this is related:

"The system cannot find the drive specified."

Now what I am wondering is, how is it that I can run this script manually but apache tells me I cannot. My permissions are set to allow all and deny nothing since it is a machine well tucked into a safe place.

Apache resides on the machine in C:

eactorcore and it also setup a virtual drive as v:core. Trying both does not work.

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