PHP :: Running An .exe File Using Exec() Or System(), Unable To Fork Error

Unable To Fork Exec()'d File In IIS 5.1
I am repeatedly trying to execute a file on my server using exec() or passthru() and I keep getting an Unable to Fork error. Has anybody else had a problem with this in IIS?? The path to the perl script is correct and the script works fine in the C: prompt.

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Exec(): Unable To Fork
I am trying to use exec() on windows IIS ,but i get the following error Code:

Warning: exec(): Unable to fork [html2pdf.exe "http://www.yahoo.com/" "yahoo.pdf"] in c:inetpubwwwrootoctsuppublicationpublicationreport2.php on line 62

and the code that i used is Code:

<? $convertpdfprg="html2pdf.exe "http://www.yahoo.com/" "yahoo.pdf"";
$checkvar=exec($convertpdfprg);?>

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Exec() Function Warning: Unable To Fork (Access Violation At 77F81B4D)
I am trying to execute a DOS command with the exec() function. All I get is fork errors or access errors, regardless of what file I try to execute. Example:

<?php
exec("sync.bat");
`sync.bat`;?>

Warning: Unable to fork [sync.bat] in C:testexec.php on line 3
Warning: Unable to execute 'sync.bat' in C:testexec.php on line 4
PHP has encountered an Access Violation at 77F81B4D

Id doesn't seem to matter what kind of file I try to execute, .exe, .bat or .com. Any ideas? Has ANYONE executed an external program under php/Windows?

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Error Running Exec() To Kill A Process
Red Hat Linux 7.3, Apache 1.3, PHP 4.3.3 I am trying to create a PHP script to terminate a process that is running on the server. The file and folder permissions are set correctly, but I am getting the error "kill 943: Operation not permitted"; I am running the command "exec ("/bin/kill 943");".

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Using Form To Post Info And Pic's (Warning: Unable To Fork)
I have created an admin form which allows the admin to update info and pic's to his site but I am having trouble with the update_pic script. When I pass along the form to the php script it gives me the following error message:

"Warning: Unable to fork [C:WINDOWSTEMPphp30.tmp /full/path/to/joesauto/images/anime_dvd_icongif.gif] in c:inetpubwwwrootadd_data.php on line 39"

This is line 39: exec("cp $picture /full/path/to/joesauto/images/$picture_name");
This is the form I used which was taken from this site. Code:

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Error: Unable To Cache A Remote File Using Copy
I used the following code to copy a remote file to my server:

copy($URL,$cachefile);

This worked very well on my old server, but it does not work on the new one.

I am getting the following error:

Unable to open 'http://[...]' for reading: No such file or directory in /local/copyfile.php on line 23

I searched for more than two hours, but I have not found the solution.

On the php.net I found the following:

Note: As of PHP 4.3.0, both source and dest may be URLs if the "fopen wrappers" have been enabled.

I am using PHP 4.2., though I don't think that this is the reason, why it does not work.

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Error :: Unable To Open 'file Path' For Writing
I have been working on this code for 2 days now and while progressing have encountered this error:

Warning: imagejpeg() [function.imagejpeg]: Unable to open 'C:/web/root/images/thumbs/' for writing in C:web
ootdevfilesadditemresize.php on line 40

here is code for the file outputting the error i have noted line 40 so you can spot it easily:

Also the value of $GLOBALS['thumbpath'] is : 'C:/web/root/images/thumbs/' .....

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Exec() Not Running
I just installed ImageMagick on my development machine (OS X 10.4.7, Apache 1.3, PHP 4). I am trying to use exec() to call it. I have created a command via PHP:

PHP Code:

$cmd = "/usr/local/ImageMagick-6.3.0/bin/convert /Library/WebServer/Documents/one.jpg -resize 250x /Library/WebServer/Documents/photos/two.jpg"
exec($cmd, $output, $retVal);

I know ImageMagick is correctly installed because when I run the command via the console, it works perfectly. The "photos" directory is chmod'ed to 777. The paths are correct. I have tested a simple "ls -l ." as the command, that outputs everything just fine.

Is there somehing I'm not doing right? Someting I need to disable or enable? I've gotten this exact code to work on a different server (GoDaddy of all places) so I'm quite certain it's not the code itself.

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Running Exec As Root?
exec('/sbin/ifdown eth0');

does not work, due to needing to be run as root.
I need to have this work on a closed network environment.

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Exec() - Running An External Program From Inside PHP.
I'm having difficulties running an external program from inside PHP. I'm trying to create thumbnails using ImageMagick's convert utility using the following program: PHP Code:

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File System Error
"Warning: Unable to create '/banners/uploaded':" I get this error after i upload a file and attempt to copy it to /banners/uploaded. Is this error telling me there is no dir named /banners/uploaded or that it can't copy to it for some reason or another?

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Find The PHP Error Log File On A Windows System
I can't seem to find the PHP error log file on a Windows system. Does anybody know where it is?

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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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System Apparently Unable To Cope With Loading
I have a customer who is having problems when their Windows
2000/IIS/PHP-based system begins to experience a level of loading that
isn't, in my view, unreasonably high. I'm wondering what others
think, specifically:

- are these volumes, for this kind of configuration, at or beyond the
levels at which PHP should be able to cope? I hope not !

- what might be done to alleviate these problems? One of our
suspicions is that Windows 2000/IIS/PHP is unable to cope at these
volumes (for whatever reasons) but a Linux/Apache/PHP configuration
would be more stable and cope with the required volume levels.

- Is the Windows/IIS/PHP configuration inherently flawed?

- What kind of volumes should we be able to expect with
Linux/Apache/PHP?

- How many web servers would be the norm for these volumes?

Here's the current config:

F5 load balancer fronting 4 web servers.

The web servers are each dual-processor Intel machines running IIS5
under Windows 2000. Over 500Mb memory is still available when IIS
gives up, so they aren't memory-constrained.

PHP 4.3.6 in CGI mode, with the Zend Accelerator included

Required volumes:

30,000 to 100,000 page views per hour

The customer sees problems with PHP at less than 3,000-4,000 page
views per hour. The webservers were only doing 20% until they spiked
to 100% and then went back to zero - it seems that at a particular
level of loading, IIS closes down and restarts itself, then runs till
the loading hits a threshold again and the cycle repeats.

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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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Using Passthru(), Exec(), System() Etc.
I have an executable that runs as expected from a command prompt but seems to do nothing when I try to run it from php, using passthru(), exec(), etc.

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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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Running PHP System()
How can I run a PHP system()/exec() command with root privileges? As stated in my earlier posts, I would like to run the following in php file:

[code]
<?php
$output = shell_exec('lsof -i :<port_no>);
echo $output;
?>
[code]

running as http://<mysite.com>/phptest.php doese not allow me to execute this command which requires root access..

Can I run some command that will provide root privelegs to the user httpd ??
Code would be something like:
[code]
<?php
exec('set root priveleges'); // may be sudo
$output = shell_exec('lsof -i :<port_no>);
echo $output;
?>
[code]

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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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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 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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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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Running System Command
I'm using shell_exec to run a system command which should generate a file that i want to read, however the file isnt generated. I have safemode disabled and if i echo out the command and paste it into SSH the command executes fine. I have checked out the error log and there are no errors. This is an example of the command i'm running: Code:

echo 'passphrase' | /home/website/gnupg-1.4.2/g10/gpg -u JON --passphrase-fd 0 --clearsign --force-v3-sigs -o /home/website/temp_dir/8edef434308edfa0fd804cfd6d139512.asc /home/website/temp_dir/8edef434308edfa0fd804cfd6d139512.txt

I've tried executing this with system(), shell_exec() and popen() to no avail.

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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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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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Running System() As Root User
Is there a way that I can run the system() command as a root user. Need to
restart network services on a server via php.

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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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CGIWrap Error: Exec Format Error
This message usually indicates there is a problem with the script
itself. Often this indicates either that the #! line of the script
is incorrect, or the script was uploaded in binary mode instead of
ascii mode. Check to make sure that the script does not have
control-M's at the end of every line. That will prevent it from
executing. An easy fix that takes care of this most of the time
is to put '#!/.../perl --' instead of '#!/.../perl' on the first
line of the script.

This is typically a problem if the script was edited or uploaded
from a DOS/Windows/Macintosh station to a unix based server.
If you are not the owner of this script, please forward this error
and the URL that caused it to the script owner. That is often the
component in the URL right after /cgiwrap/.

does anybody know what does this message means?

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PHP Running Exec() Windows Program Very Slow In Comparison To UNIX Equivalent Program
Does anyone have an explanation or solution for the following.
I have a PHP script that uses exec() to call a program to do certain
calculations.

The UNIX version of this program I call runs in about 4 to 5 seconds.
When I run the same PHP script using exec() to call the Windows equivalent
of this same program on my Windows desktop, it takes about 32 seconds....

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Install Php5 On A SuSE 9.3 Linux System Running Apache 2.0.49
I am trying to install php5 on a SuSE 9.3 Linux system running apache 2.0.49. For some reason,when attempting to restart the server,I get the following error:

"Syntax error on line 26 of /etc/apache2/sysconfig.d/loadmodule.conf:

Cannot load /usr/lib64/apache2-prefork/libphp5.so into server: /usr/lib64/apache2-prefork/libphp5.so: undefined symbol: php_session_create_id"

Does anyone know what is causing this error,or what I can do to correct it?

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'echo "": No Such File Or Directory" Error Using "exec" To Pipe In PHP Script
[TCL]
set php {<? print_r("Hello World"); ?>}
puts $php; # PRINTS OUT <? print_r("Hello World"); ?>
puts [exec "echo '$php' | php -q"]
[/TCL]

When I try this within TCL I get the following error:

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Unable To Find Php_domxml.dll Error
I have just finishing installing apache and PHP4. It is claiming that
it cannot find the php_domxml.dll file giving me the following error
when I go to load a page with dom xml function on it:

Unknown(): Unable to load dynamic library
'C:/php/extensions/php_domxml.dll' - The specified module could not be
found

I am convinced that the paths are correct as I have the following line
in php.ini:

extension_dir = "C:phpextensions"

The file, php_domxml.dll, is defininetely in the extensions folder.

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Php Exec Error
i cannot execute the exec command and pass varaible through it

exec('/secure/sed_repl.sh "route add -host $obj->host device $device2" "" ');

I have to execute it this way ...
exec('/secure/sed_repl.sh "this one" "this one to" ');

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Warning: Stream_select(): Unable To Select [0]: No Error In ...
<?php
while (true) {
$read = array(STDIN);
$write = $except = NULL;
if (stream_select($read, $write, $except, 0)) {
}
}
?>

When I run this in PHP4, I get a "warning: stream select(): unable to
select [0]: No error" error. In PHP5, I don't.

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Error Suppression And Exec?
Is it possible to use '@' to supress errors from exec, ie @exec()?

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Warning: Move_uploaded_file() Unable To Move *file* To *new File* In *script*
I'm having trouble with move_uploaded_file()- my script was working fine until a month or two ago when it suddenly stopped. Now I get the error:

Warning: move_uploaded_file() Unable to move *file* to *new file* in *script*

Thats it, no permissions error or "unable to open stream"- all the searching I've done everyone seeems to get another error- but I'm only getting the one. Permissions on the folder are 777, the paths are absolute and definitely correct, safe_mode and open_basedir are both off. I even called is_uploaded_file() on the line before it and it returned true. The only thing I can think of is that the hosts upgraded to php4.4 recently- could that be it? Are there any known problems (or changes that would break my script)?

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Unable To Load Dynamic Library Php_mcrypt.dll.. Error
I am getting the error "unable to load dynamic libray php_mcrypt.dll...". I
understand that php_mcrypt.dll depends on the existence of libmcrypt.dll
library. I am using Windows 2003 and I have downloaded two versions of this
dll and installed them once in php's ext folder and Windows's system32.

The question is why am I still getting this error? Why are there different
versions of libmcrypt.dll around while there's no version info in the dll?
Also why isn't libmcrypt.dll distribued with php_mcrypt.dll?
At least the PHP folks should mention where we can get it and what version
goes with what.

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Error Starting Up SSH Connection(-5): Unable To Exchange Encryption
For the life of me I can not figure out why I am getting this error:

Error starting up SSH connection(-5): Unable to exchange encryption
keys

$connect = ssh2_connect('d50-1.s50', 22);

That's the code. One line PHP. I've tried connecting to localhost as well. Still no love. I've got ssh2 working on other installs but not this one. Any ideas on something I'm missing or a php.ini thing?

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SquirrelMail Error: Warning: Fsockopen(): Unable To Connect To [ip Address]:143
If anybody has experienced the following SquirrelMail error:

Warning: fsockopen(): unable to connect to xx.xx.xx.xx:143 in
/home/virtual/siteX/fst/var/www/squirrelmail/functions/imap_general.php
on line 172

or something similar, then listen up, here's the solution. PHP 4.3.x
has known bugs with file handle and socket leak issues. This is true
up to PHP 4.3.3. The only solution for now is to revert to PHP 4.2.x.
I'm told that this issue only affects systems with 250+ SquirrelMail
sites.

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Using Exec Function To Get A .exe Return Status Gives CGI Error
I'm trying to make a web page to work. It worked before so it has to
be something related with the configuration.
My problem is a call to a compiled executable (made for me) that
returns 1 or 0. It does not print any text to the standard ouput so
the error is strange:
CGI Error: The script can .. because of the HTTP headers (I have it in
spanish so the message is not the exact one).

As supposed, the HTTP headers are needed only if the executable prints
out a text to the browser but it's not the case. And (I repeat) It
worked as it before. The machine had to be formatted and the guy in
charge of that is not with me anymore.

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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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Fatal Error: Unable To Start Browscap Module In (null) On Line 0
I installed Apache today, succesfully, changed the necessary variables in httpd.conf - installed php and Mysql and Perl, yet when I run a PHP page, I just get the following error every time:

Fatal error: Unable to start browscap module in (null) on line 0
Unable to start modules.

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PHP Installation Issues On WinXP And IIS - Error: Unable To Start DCOM Server
I just installed PHP 5.1.4 on Windows XP and I am getting an error
trying to load a simple phpinfo() script.

Server Application Error
The server has encountered an error while loading an application during
the processing of your request. Please refer to the event log for more
detail information. Please contact the server administrator for
assistance.

I checked the Event Viewer and I'm getting an error and a warning.

error: Unable to start DCOM Server as /IWAM_MYNAME_LT1. The error
"access denied"

warning: The server failed to load application /LM/W3SVC/1/ROOT. The
error was "general access denied error"

I have given Full Controll privileges to c:php, c:Inetpubwwwroot and
the php.ini file to both the IUSR and IWAM accounts. I have set IIS to
allow "Scripts and Executables". Application protection is "Medium
(pooled). I'm not sure what to do at this point. I don't remember ever
having this problem before. Any ideas what's going on?

One note... I changed "Application Protection" in IIS to "Low (IIS
Process" and now the PHP script loads... but restarting IIS with
"issreset /restart" causes IIS to crash.

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