[php] Posting correct value when using foreach

Erhnam · 02-10-2005, 07:55 AM

I wrote a php script that uses the foreach function. The result (a group of system users) will get through the netstat commando and if the status is null, a button will be displayed. This all seems to work.

PHP Code:



foreach ($result as $inhoud) { 
exec ("netstat -ea | grep $inhoud", $userstatus); 
 
echo $inhoud; 
if ( $userstatus == NULL ) 
{ 
echo "<font color=\"red\"> Server status offline!</font><br>"; 
echo "<form action='start.php' method='post'>"; 
echo "<input type='hidden' value='$inhoud' name='inhoud'>"; 
echo "<input type='submit' value='Start'>"; 
echo "</form><br>"; 
$_SESSION[inhoud] = $inhoud; 
unset($userstatus); 
//unset($inhoud); 
}

http://www.strengholt-online.nl/linux/serverstatus.png

The next thing is I want to post (session) the value of the user after pressing the button. Without using unset the value is always the latest value of result. Using unset I get the first value of unset. Both are wrong. In this example, when I press on Start for csuser05. The next page displays csuser01 or csuser11 (last in the row). What do I have to do to get the right value of the user posted?

Next screen:

PHP Code:



<? session_start(); 
 
echo $_SESSION[user]; // is admin 
echo "<br>"; 
echo $_SESSION[inhoud]; 
echo "<br>";

bulliver · 02-10-2005, 03:12 PM

Couple things:
First, your global variables need quotes in them ie: $_SESSION['user']

Second, I don't think the value of $_SESSION[inhoud] is making it to your second page (start.php) as you are only passing the POST variable, not the session variable.

Try this:

Code:

foreach ($result as $inhoud) { 
exec ("netstat -ea | grep $inhoud", $userstatus); 
 
echo $inhoud; 
if ( $userstatus == NULL ) 
{ 
echo "<font color=\"red\"> Server status offline!</font><br>"; 
echo "<form action='start.php' method='post'>"; 
echo "<input type='hidden' value='$inhoud' name='inhoud'>"; 
echo "<input type='submit' value='Start'>"; 
echo "</form><br>"; 
}

then:

Code:

<? session_start();
// give $_SESSION['inhoud'] a value here, as it is not being 
// passed along with your POST data
$_SESSION['inhoud'] = $_POST['inhoud'];

echo $_SESSION['user']; // is admin 
echo "<br>"; 

echo $_SESSION['inhoud']; 
echo "<br>";

HTH