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Check To See If A Program Is Running


Is there any specific way to check to see if a certain program is up and running? Like I want something to pop up only if program ****.exe is running.




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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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Running Program
I have a program called "rlx" that takes two arguments and writes a file. The command line could be "~/rlx file b" and it executes correctly from shell. What it does is to write a file to webserver/rlx/file.dat. The permission for the program rlx is 755, the permission for the dir rlx is 777, and the text output from the program after having run it is correct. (It displays the filename and other data). Code:

//Commandline tried are all these, just one of them in the real code of course:
$commandline = "/home/me/rlx/rlx file b";
$commandline = "/../../rlx/rlx file b";
// since above didnt work, i tried to copy the program file to the web directory, renaming it to rlx2 so it doesnt have the same name as dir
$commandline = "rlx2 file b";
$commandline = "/.rlx2 file b";

// one of following in the real code of course
exec($commandline);
system($commandline);
shell_exec($commandline);

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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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Problems Of PHP Script Running Perl Program With Spreadsheet::ParseExcel Module
My php script is to call perl scipt which makes use of
Spreadsheet::ParseExcel module to parse Excel file. I am able to launch
php script from command line so that perl script can run and properly
parse Excel file. However, when I put php script on server side and
then launch php through client request, perl program can't run.



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How Can I Check If A Server Is Up And Running?
Is there any way to check if a server is running and then refresh to it?
maybe something like this:

<?php
$url = "http://www.mysite.com";
if(server_status($url) == true){
header('location : $url');
}
else{
echo "Server down -- TRY AGAIN LATER";
}
?>

I was looking at php.net and i found Memcache::getStats(), but i don't know what that does...

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How To Check If Mysql Is Running
I have just installed mySQL win32 version and i dont really know how to get the service to run or if it is actually running. is there any php code that will check to see if it is running.

if it is running, can someone tell me how i am actually suppose to manage and add new databases etc?

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Possible To Check To See If Windows Process Is Running From PHP?
I need to check the state of a processes from within a PHP script on a
Windows machine. All I need to know is whether or not the process
exists (i.e., is running). Anyone have any ideas?

I searched the archives and found proc_open(), but if it can do what
I'm trying to do, I can't figure out how.

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Check That The Image Is "complete" Before Running The Script?
I have a script that processes a live image from a webcam, cropping it and delivering it to the user. The webcam ftp's an image called "ftp.jpg" every so often, and when the user loads the "live image" page, the script opens the ftp-ed image and creates and saves a new jpeg with the cropping applied.

The problem seems to be, if the user runs the script and the new image hasn't finished ftp-ing in, the resulting cropped image is black - nothing. Is there some way to check that the image is "complete" before running the script? If not, any suggestions for avoiding trying to process an incomplete image?

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Warning: Invalid Argument Supplied For Foreach() Running On A OS X Machine Running Apache 1.x And PHP 4.x.
The following script was running on a OS X machine running Apache 1.x and PHP 4.x. I just moved the script over to a Linux machine running Apache 2.0.51 and PHP 4.3.8, and now the foreach line does not work. It says Warning: Invalid argument supplied for foreach()

in /var/www/localhost/htdocs/warehouse/whse_order_submit.php on line 39

Here is the script:

<?php
//get the variables from the other page
$id=$_POST['id_no'];
$sku=$_POST['sku'];
$description=$_POST['description'];
$order=($_POST['order_qty']);
$store=$_POST['store'];
$comment=$_POST['comment'];

$ip=$REMOTE_ADDR;

//check if store is empty
if(empty($store)) {
die("Store is required. Please press the back button and enter in your store.");
}

//connect to the database
require('../inc/database_conn.php');

//$month=getdate(mon);
//$day=getdate(mday);
//$year=getdate(year);
//$today=$year . "-" . $month . "-" . $day
$today=date('Y-m-d');

// create the unique order number

$headerqry = "INSERT INTO misc_order_header (order_date, store, comment, ip) VALUES ('$today', '$store', '$comment', '$ip')";

mysql_query($headerqry, $conn) or die(mysql_error());
$order_no=mysql_insert_id();
foreach($order_qty as $id_no => $val) {
if($order_qty[$id_no] > 0) {
$detailqry = "INSERT INTO misc_order_detail (order_no, id_no, sku, order_qty, order_date, store) VALUES ('$order_no', '$id_no', '$sku', '".$order_qty[$id_no]."', '$today', '$store')";
mysql_query($detailqry, $conn) or die(mysql_error() . "<BR>" . $detailqry);
}
}

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How To Call *.exe Program From Php Program
I have a php program, and from that program I wanna call C program that counts number of visitors on my page.

This is a piece of my program:

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Two Sessions: Session A By A Program Destroys Session B By A Program
I have two separate programs that I want to use together on a website
Program A starts first and calls session_start(). Program B is started by the user clicking on a link and it also calls session_start(). The session started by program B blows away the session started by program...

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Code To Check Which Check Boxes Are Checked On The Previous Page And Add Their Names To An Array.
I have a page that has a bunch of check boxes with different names. Once the user presses the submit button another page opens. In that page i am trying to write code to check which check boxes are checked on the previous page and add their names to an array.
How can i check the checkboxes from another page? I have to do it on another page as i am waiting for the submit action to know what boxes have been checked..

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Sessions? External Program / External Program
I am trying ac ouple of days now to learn some things on SESSIONS,but I think I am not getting it very clearly. I have a PHP page tha contains a form.

Users enter data in the form, which are then written in a file (the file is created at the time a user enters some data) The file is then given as an input to an external program The external program runs and gives some results which are then stored in another file (that is created when the external program finishes) What I want to do is to somehow create these files and, when the user exits from the browser, then both files that refer to this user, will be deleted. Code:

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Add A Drop Down Menu For Check In And Check Out Date
i have done a booking system and want to add a drop down menu for check in and check out date. I have done the drop down menu and the date display in is today's date. I wanted to make the the date 3 days in advanced of todays date.

<select name="dayIn" >
            <? for ($i=1;$i<=$days;$i++) {
                
                if($i == $_POST['dayIn']) { ?>
                <option value="<?=sprintf('%02d', $i)?>" selected><?=$i?></option>
            <?  }

                else if($_POST['dayIn'] == "" && $i==date(d)){?>
                <option value="<?=sprintf('%02d', $i)?>" selected><?=$i?></option>
            <? }
            
            else { ?>
                <option value="<?=sprintf('%02d', $i)?>"><?=$i?></option>
            <?  }
            
            } ?>
            </select>


and here is my code for check out:

<td>Check-out date</td>
        <td>&nbsp;</td>
    </tr>
    <tr>
        <td><select name="dayOut">
            
        <?
            #$nextDayOut=$_POST['dayIn']+1;
            $nextDayOut = date('d', strtotime('+1 days'));
            
            for ($i=1;$i<=$days;$i++) {
                
                if($i == $nextDayOut) { ?>
                <option value="<?=sprintf('%02d', $i)?>" selected><?=$i?></option>
            <?  }
            
            else { ?>
                <option value="<?=sprintf('%02d', $i)?>"><?=$i?></option>
            <?  }
            
            } ?>


can anyone help me figure this thing out?

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Sort Of IP Check Or Other Security Check
Do sessions already do some sort of IP check or other security check or do I have to do this manually? My problem is that I want to use sessions to log in users to my message board. My concern is that a non-cookie user, we'll call her Mary, will post a link to another message at my site and that link will include her session id. If someone else, call him John, clicks on that link, will John now have the same session id as Mary? Or are sessions smart enough not to let that happen?

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File Check-in/check-out System?
I'd like to a build a PHP-based interface for sharing documents (MS Office docs, latex, etc). I need to be able to allow users to "check-out" the files for their exclusive use and then go through a "check in" process when they re-upload the doc so it's accessible again to everyone else.

I'd also like to implement some form of version control where older versions of the docs can be in some sort of repository. I'm not quite sure how to approach either concept. I'm wondering if anyone can give me tips on how I might go about this.

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I need help with a part of my script that should, when finnished, to be able to identify incomming orders by first checking the title and then, where price is = the price, check the identify to find a match. Code:

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PHP Used As A CGI Program
Manual for odbc_pconnect states: "Persistent connections have no effect if PHP is used as a CGI program." As I have just installed PHP on a PC with an Apache server, how does one tell if it is used as a CGI program, and if so, how does one confiure it not to be?

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C Program And PHP
I have written this function in a C program, using Visual Studio. The
PHP script executes fine, but the output is not displayed. I have
been racking my brains for hours trying to figure this one out. The
output from the php program should print to a file called 'out.txt'.
The file is successfully created, but with no content. I am pretty
sure it's the way PHP returns the results. Does anyone have any
ideas? Any help would be most appreciated.

int passCode(void)
{
FILE *phpFile, *out;
size_t len;
char buffer[1000];

phpFile = popen("php -f testing1.php", "r");
if (phpFile)
{
out = fopen("out.txt", "w");
len = fread(buffer, 1, sizeof(buffer), phpFile);
fprintf(out, buffer);
fclose(out);

pclose(phpFile);

return 1;
}
else
{
return 0;
}
}

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How To Use ? And : In A Program
in the program below, what is the meaning/use of
the question mark (?gcd) and the colon (:$a) after the return statement?

<?
$x=32;
$y=80;
function gcd($a, $b)
{ return ($b>0)?gcd($b,$a%$b):$a;}
$val=gcd($x, $y);
print "The greatest common denominator of $x and $y is $val";
?>

This recursive program is used to find the greatest common denominator of 2
numbers.

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I am using

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I was expecting the menu to provide links rather than function calls.
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The current program is spagettii code and somewhat buggy. There are
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I have been solving algorithms with php, just to get practice. But my
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task:

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