PHP :: Exec, Shell_exec, System, And Passthru Not Working At All

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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System(), Exec(), Shell_exec(), But "Permission Denied"
I want to execute the php script via web server to run linux command. I try to use system(), exec(), shell_exec(), but the system show me "Permission Denied". i have set the file permission by using chmod 777 file.php .

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System/exec Not Working In Browser
In two files, and I serve foo.php then I notice If I use commandline execution i.e. php foo.php then foo.txt is touched/created all right. i.e. system command is executed as expectedBut If I use browser then I notice that the shell command in config.php is *not* executedAny ideas as to why this might be happening? Code:

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Passthru & Exec
I have a script which uses passthru to execute a shell script. This shell script then (at some point in its running) executes a php script. When executing the shell script from the command line everything works fine. When using passthru, however, I get the following error when it gets to the point where it tries to execute the 2nd php script: Code:

Status: 404
X-Powered-By: PHP/4.4.2
Content-type: text/html
No input file specified.
255

I'm hosted on Dreamhost with php 4.4.2.

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Passthru() Or Exec()
I am trying to make a website where I can restart an application. I can make it terminate the app but it hangs when trying to restart it. the website calls the function this way:

#####################
PHP
#####################
<?php
ifÂ (isset($_POST["kill_server"])){
Â Â kill_server();
Â Â echoÂ "<imgÂ src=./images/ok.gif>Â ElÂ serverÂ estaÂ siendoÂ apagado.Â PorÂ favorÂ espereÂ 1Â minuto!";
}Â elseifÂ (isset($_POST["init_server"])){
Â Â init_server();
Â Â echoÂ "<imgÂ src=./images/ok.gif>Â ElÂ serverÂ estaÂ siendoÂ iniciado.Â PorÂ favorÂ espereÂ 3Â minutos!";
}
?>.

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Cannot Get Exec() Or Passthru() To Work?
I cannnot seem to get exec() or passthru() to execute a perl script;
here's the code snippet:

if ($debug) {
echo "username1 = ".$username1." ";
echo "dbname = ".$dbname." ";
echo "SESSION[dbname] = ".$_SESSION['dbname']." ";
echo "Output file = ".$outputfile." ";
echo "Project name = ".$projectname." ";
echo "Study name = ".$studyname." ";
echo "The command to be run is: ".$cmd." ";
}

// Run the command!
exec($cmd,$myoutput,$rtnvar);
echo "rtnvar = ".$rtnvar." ";

foreach ($myoutput as $line) {
echo $line." ";
}

Which produces the results:

username1 = rick
dbname = cgb_lab_data
SESSION[dbname] = cgb_lab_data
Output file = myoutput
Project name = IBS11_1103
Study name = IBS 11
The command to be run is: perl
/home/caseyr/projects/LIMSScripts/3100DataIO/mk3100plt.pl -n 'IBS 11'
-b 1103 -o myoutput -p IBS11_1103 -i S
rtnvar = 13

The command looks perfectly legit, and will run at the command line if
I cut and paste it.

I do not understand the return value of 13.

I can get a simple perl script that takes no arguments to run ok; so I
think this has something to do with the arguments. I've used
escapeshellarg() to no avail. I've always tried the same with system()
and the backtick operator --

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Why I Can Use Exec() And Passthru() To Execute Lynx
i have try using exec("/bin/lynx -source http://URL") or passthru("/bin/lynx -source http://URL") but also not success and i have put the lynx inside the bin folder already but also cannot, why?

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Exec, Passthru Disabled So How To Call C++ .exe File?
I am at my wit's end trying to get information out of Streamline.net's
support dept about my problem. They reply quickly enough, but seem to try
and give out the least possible amount of info each time. The transcript so
far is reproduced for your amusement below.

To summarise:

I've put up a Sudoku-solving program called Sudoku.exe. I want to call it in
a php script to solve a puzzle and output the solution. It works fine with
Apache/php on my own machine, but it seems Streamline.net disable exec,
passthru etc. They eventually say, cryptically: ' CGI executables are
supported, however this is very different from executing a program from
within a PHP script'. So how would I call my Sudoko.exe file?

The 'dialog':

My last question seems to have been 'fixed' before being answered, so I'll
have another go.
I'm trying to call an .exe file on the server but get an 'unable to fork'
error message. I have Apache/php installed locally and it works fine. Do you
have to turn on 'cmd.exe' permissions or something? Try it yourself at:

Warning: passthru(): Unable to fork [Sudoku.exe (argument...)] in (.php
file...)
It's the same with exec() as well.

We do not support passthru or exec functions.

So how would I call my Sudoku.exe program from a php script?

I do not want 'scripting help', I just want to use some of the functions
that you offer as a host and which I have paid for.
As I have said what I am trying to do works perfectly on my machine, so it
must be a question of something you have to enable your end. What do you
mean you don't support passthru or exec? They are both standard php
commands.
.

You asked "how would I call my Sudoku.exe program from a php script?"
clearly this is asking us how you can use scripting?

Certain functions are disabled in PHP for security reasons.

Which functions are 'disabled in PHP for security reasons' ?

You can find this out with the inbuilt php function phpinfo()

Could you tell me where on the page that phpinfo() produces these functions
are listed? For example, passthru() does not appear to be on the page.
.

search for "disable_functions" on that page.

disable_functions lists 'no value'. So again, could you tell me where I can
find the list of standard php functions which you have disabled?
Please can you provide a link to your phpinfo file so we can investigate
this further.
We had previously checked this on a linux server, which showed the functions
that have been disabled. We've passed this on to an engineer to investigate
further.

For your information the following are disabled:

shell_exec,exec,system,passthru,popen

Your knowledge base says:
Q. Are CGI (Common Gateway Interface) executables supported?

A. Yes these are supported on either the Windows and Linux servers

But you are telling me that the only php functions which can call my
executable are disabled. Will you clarify once and for all if I can call my
exe file or not. I AM NOT ASKING FOR SCRIPTING HELP, I have books about
that. I just want to know if I can do ON YOUR SERVER what you say I can do,
and if not why not.

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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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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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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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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 = $result ";
echo "Lines 
";
foreach ($lines as $k => $v) {
echo "k=$k v=$v 
";
}
?>

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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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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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Passthru & System Has Beed Disabled !
How to use passthru() and system() by ini_set() or under safe mode ?

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Format Result Text Using Passthru Of System
I tried to use the Passthru and System function to resolve some whois
information.

echo passthru('whois 62.69.168.12') .' '
-or-
$whois = system('whois 62.69.168.12', $retval);

It works fine, but all the result text is at one line. How can i format this
output correctly ?

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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 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 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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System(); Command Not Working On Remote System. Windows.
My server is a windows machine, on the same domain as python(also a windows machine). Apache is running as a service as an administrator. This is a test only environment to whom it may concern(I hate people telling me how insecure my system is) I'm just trying to run:

$last_line = exec('dir pythonc$', $retval, $g);
print_r($retval);
echo ' '.$g.' ';
echo '$last_line= '.$last_line.' ';
Which outputs:

Array ( )
1
$last_line=

The command from the command line works fine. And apache can access directories that only administrators can access on the local machine.

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PHP System() And Exec()
Background: I am trying to execute a binary on the server located in the current directory where the php script is being run. The server is a linux (debian based). I am having trouble getting php to execute the binary properly, below is my code. Code:

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System() And Exec()
If you start a program using this function and want to leave it running in the background, you have to make sure that the output of that program is redirected to a file or some other output stream or else PHP will hang until the execution of the program ends.

I have tried numerous time by redirecting to a file or other stream to free up a php web page that called a perl script for example, but the php script always hangs...has anyone had any luck freeing up a calling php script from a process, or program that it launched in the background? Code:

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Exec(), System()
I write very, very simple script who call external program. The script is run on Linux Slackware, Apache/1.3.37 (Unix) mod_ssl/2.8.28 OpenSSL/0.9.8b PHP/4.4.4 here is my script:

<?php
echo exec('ls');
?>
this work properly.

but if i write:

<?php
echo exec('xine'); //xine is a multimedia player
?>

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Bug In System And Exec Commands
If PHP is running via a web server, and mutiple system
calls are made within the script to another script,
hundreds of processes are created. Here is an example:

Script 1:
<?php
for ($i=1; $i<=5; $i++) {
system("php script2.php");
}
?>

Script 2:
<?php
exit;
?>

The effect is the same (and more difficult to stop) when
the system calls are made in the background. e.g.

system("php script2.php >>/dev/null 2>>/dev/null &");
system("php script2.php >/dev/null 2>&1");

I have even tried calling a shell script, which in turn
calls the second PHP script (both in the background), but
it still causes lots of processes.

The "exec" command is also affected.

At first, I thought this was a problem with either Zeus web
server of Fast CGI, but I have since tried it with Apache
and normal CGI with the same effect.

Does anyone have any idea why this happens and whether there is any way to prevent it? I have posted a bug report to bugs.php.net (ID 14997), but so far to no avail.

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System() Or Exec() And Permissions
I'm trying to run a command (mogrify) that requires that I'm logged in as root, or at least I think this is the case. How can I do this?

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Exec() And System() Problems
I am trying to use php's exec() or system() to execute a shell script that I wrote.

exec and system() work fine with a simple command like ls, but nothing happens when I point it at the shell script.

The shell script works fine from my shell login. Can't figure out what tho problem is. Is php just incapable of running shell scripts?

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System/shell/exec/etc
I've got PHP 5.1.6, Apache 2.2.2, on Fedora 5. Everything is great except that when I use an of the external launching commands, persistent apps dont stay open. I have a simple shell script set up to load an app, and I have it write a PID file. Immediately after calling exec (milliseconds later) the PID is alive. However, within a few more milliseconds it seems to close.

I've made sure that the apache uid/gid have full access to the script and the apps it calls. When sudo'ing manualy in a shell with the apache uid, the script works flawlessly and loads the program, and stays open, as it should. I've verified that the app loads under the uid 'apache' with ps. When running it through PHP, it seems to close almost immediately after succeeding.

Is there some fundamental issue with how this works that I'm missing? I can't seem to get any real errors out of php, apache, or even the shell when redirected to a file. Should I try PHP4? Is PHP5 buggy with this kind of thing? I even tried running 'at' to schedule the script (so that it'd be invoked by at instead of the shell itself) but that failed, silently, as well.

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Exec(), System() And Win 2003
I have searched high and low for the past 2 days for an answer to my problem. I have found a few references, but nothing has helped me. My problem is this: I am trying to ping a remote server from a PHP script in IE 6.0. When I load the page, the cmd.exe loads on the server and takes up all my CPU. I have to manually stop the process for it to go away.

My setup is this:
Windows 2003 Server
PHP 5.0.1

I have tried
- giving my system32cmd.exe full IUSR_%machinename% rights
- moved the cmd.exe to the script folder, to the PHP folder

And about a million other things that I can't remember =(. I have tried multiple functions, written in mulitple ways and the outcome is always the same. when the cmd.exe is opened it hangs on the 2003 server.

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Use Exec() In PHP 5.2 On A Windows XP Pro System
I'm trying to use exec() in PHP 5.2 on a Windows XP Pro system. What I'm trying to do is use it to tell an already running program what to.

For example:
X:pathprogram.exe /something
or
X:pathprogram.exe /something_else

If I do the command through the command line, it works, but so far I have been unsuccessful in PHP. Usually it PHP just hangs, and give no error message, and does nothing to the program.

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Exec Is Not Working Right
I'm trying to convert a video with exec i have just installed php 5.0.5 on my server and every thing seems to work except exec can you help
i have tried

<?
runExternal( "ffmpeg -i video.mov -s 320x240 -r 30 video.flv", &$code );
if( $code ) echo "bad transcoding";
else echo "looks good";

function runExternal( $cmd, &$code ) {

$descriptorspec = array(
0 => array("pipe", "r"), // stdin is a pipe that the child will read from
1 => array("pipe", "w"), // stdout is a pipe that the child will write to
2 => array("pipe", "w") // stderr is a file to write to
);

$pipes= array();
$process = proc_open($cmd, $descriptorspec, $pipes);

$output= "";

if (!is_resource($process)) return false;

#close child's input imidiately
fclose($pipes[0]);

stream_set_blocking($pipes,false);
stream_set_blocking($pipes[2],false);

$todo= array($pipes[1],$pipes[2]);

while( true ) {
$read= array();
if(!feof($pipes[1]) ) $read[]= $pipes[1];
if(!feof($pipes[2]) ) $read[]= $pipes[2];

if (!$read) break;

$ready= stream_select($read, $write=NULL, $ex= NULL, 2);

if ($ready === false) {
break; #should never happen - something died
}

foreach ($read as $r) {
$s= fread($r,1024);
$output.= $s;
}
}

fclose($pipes[1]);
fclose($pipes[2]);

$code= proc_close($process);

return $output;
}
?>
and
<?
exec("ffmpeg -i video.mov -s 320x240 -r 30 video.flv");
?>
and
<?
system("ffmpeg -i video.mov -s 320x240 -r 30 video.flv");
?>

None worked ....

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Problem Using System/exec Function.
I am faced with strange problem. Basically I want to make a script which would take mysql back up for me. I have come up with following. [ basically code is borrowed from some other place ]
PHP Code:

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Using System/exec, How To Backup Database?
system("mysqldump --opt myDatabase > backup.sql");

here are my problems,

i don't think it works on the webserver. next, where exactly the file, backup.sql be place if it does succeed.

i believe we just can't execute commands on the webserver can we?

i also tried using the sql query BACKUP TABLE ... TO .. but i'm guessing the problem lies with the TO... how do i know what directory shall i place it therE?

for instance, my pages are placed in,

home/myname/public_html/...

i tried to put
home/myname/public_html/backup in the TO but nothing happens.

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Command Window - Exec/system
I'm in the process of developing a script in Windows where I need to use exec/system. Whenever I execute either, Windows spawns a command window which automatically sappears. Is there a clean way to force Windows to NOT display the command window?

I've seen this discussed a few times previously, but, none of the
solutions seem to be working (tried both exec and system; tried using
cmd /c, tried using start /B, etc.)

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Php Exec() Function Is Not Working
I am trying to execute linux command with php. I am try to log on as super user, so I have used the following code:

exec("su root");
exec("<password>");

But I dont think its working, becuase if I want to change my directory and view the list, I find myself in the same directory.
I have used the following code:

exec("cd /");
Passthru("ls -l");

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Exec Stopped Working?
I wonder if anyone has experienced something like this, as it seems
truly bizarre and is causing me to tear out my hair (what little there
is left of it)....

The exec() function just suddenly stopped working, for no discernable
reason. Here is the code:

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Exec And System Commands Blocked By Host
I've got this code, its the simpliest example I could make. It works perfectly on my windows xp/apache/php box, but doesn't do anything on a commercial website host. The actual code should use gzip to compress a folder but that doesn't work either.

Anyone know the reason why they would be blocking these commands? I suspect the problems with commonly used php apps like phpBB to be the real reason.

<?
exec("ping 127.0.0.1 > test.txt") or die();
// get contents of a file into a string
$filename = "test.txt";
$fd = fopen ($filename, "r");
$contents = fread ($fd, filesize ($filename));

fclose ($fd);

echo $contents;

?>

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Alternates To System() And Exec() In Order To Use ImageMagik?
My Web host apepars to not allow exec() and system(), as a line in my script:

system("convert -scale 100x100 $uploadfile $toimage");

gives the error:

"Warning: system() has been disabled for security reasons"

Is there some other way to use ImageMagik (or is it GhostScript?)'s
"convert" command in PHP that may be safer and generally allowed by Web
hosts?

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Exec - Create An Executable That Return The System Drives
I need some help about exec command. I have create an executable that return the System Drives. It is based on DOS and does not need any parameter.

I have create my php script that executes the executable i've create and the source code is the following: ...

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Exec(curl --proxy ....) Or Passthru(curl --proxy....)
I am trying to do some proxy stuff , I am able to retrieve the page but not able to catch the return , what I am doing is

passthru("curl --proxy 195.115.142.120:80 xyz.com");

or

exec("curl --proxy 195.115.142.120:80 xyz.com");

It throws the results (displays the xyz.com) to my page but I want to catch that in a variable like

$variable=passthru("curl --proxy 195.115.142.120:80 xyz.com");
or
$variable=(some php fucntion)("curl --proxy 195.115.142.120:80 xyz.com");

echo $variable ,

should give me the page.

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Running An .exe File Using Exec() Or System(), Unable To Fork Error
I have a problem with running an .exe file using exec() or system() I have downloaded a file called ffmpeg.exe for converting movie clips. I can use the program thourg the command line in windows (cmd), but I'm not able to have PHP run the file. First PHP gave be an "unable to fork" error. But then I gave users access to the cmd.exe file and solved that problem. So now is no problem running for example exec("dir");

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PHP Functions Not Working In My System
Even the normal parameter posting for a php page through submit page is not running in my system.it says "variable not found".A normal php page runs. Should i include any php dll files for this?

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System() Function Is Not Working In Windows
I want to encrypt a text file's content using public key of other user. I'm working in windows NT and running my php in apache server. I've installed my gnupg in c:gnupg.
To encrypt the content I used the following code: PHP Code:

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Can't Get Phpinfo Working On My Linux System
I can't et phpinfo working for some reason on my linux system. every other php file works and every other command file works, but if i add the phpinfo() comand to the file then i get a forbidden 403 error??

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System(); Not Working Within A Made Function
for some reason system(); isnt working when i use it within a function i made, is there a reason? it works perfectly fine out of the function.

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Working On A Username Validating System
i am a working on a username validating system...and it needs to do the following things...

Only allow lowercase letters
Allow numbers
Allow "_" and "$"

and not allow anything else...and if it does not go by this print an error out.

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Warning: Ftp_exec() [function.ftp-exec]: SITE EXEC Is An Unknown Extension
This is kind of a part II to a question a posted earlier about exec and shell_exec not working.

I'm trying to use ftp_exec to execute some simple command:

$conn_id = ftp_connect("$server") or die ("Cannot initiate connection to host");
ftp_login($conn_id, "$username", "$userpass") or die("Cannot login");
$command = 'cd..'
if (ftp_exec($conn_id, $command)) {
echo "$command executed successfully";
} else {
echo "could not execute $command";
}
ftp_close($conn_id);

I'm getting the following error:

Warning: ftp_exec() [function.ftp-exec]: SITE EXEC is an unknown extension in /home/urieilam/public_html/work/video/test1.1.php on line 21
could not execute cd..

Have tried other commands as well, get the same. Could this be a security issue or something to do with p Safe Mode? I don't know much about commands, shell, etc..

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