getting process id in php

[shoonya]

i am using windows XP

and using
popen("start notepad","r");

to start a note pad
now how can i get the process id of this notepad

shoonya

[Atli]

Check out the proc_get_status () function.
It should get you what you need.

[shoonya]

thanks a lot atil

but when I am using popen to open the note pad it's giving error
[PHP]
PHP Warning: proc_get_status (): supplied resource is not a valid process resource in C:\Program Files\Apache Group\Apache2\h tdocs\quedge3\i ndex\test.php on line 46[/PHP]

i think it's looking for a process that has been opened by proc_open but i am not able to get the syntax of proc_open

so help me out
i am stuck here for last 2 days :(

shoonya

[Atli]

I managed to get this working using the 'ipconfig' command, didn't manage to get a notepad window. Don't really undestand why you'd want that anyways.

But anyhow.. this is my code:
[code=php]
<?php
error_reporting (E_ALL);

$descriptorspec = array(
0 => array("pipe", "r"),
1 => array("pipe", "w"),
2 => array("pipe", "r")
);

$process = proc_open('ipco nfig', $descriptorspec , $pipes);

if (is_resource($p rocess)) {

// Get the proccess info
echo "Proccess information:<pr e>";
$var = proc_get_status ($process);
print_r($var);
echo "</pre>";

// Print stream from proccess
echo "Process output:<pre>";
echo stream_get_cont ents($pipes[1]);
echo "</pre>";
fclose($pipes[1]);

// It is important that you close any pipes before calling
// proc_close in order to avoid a deadlock
$return_value = proc_close($pro cess);

// Print return value (0 if success)
echo "Process returned:<pre>" ;
echo $return_value ."\r\n";
echo "</pre>";
}
else
{
echo "Process failed to open";
}
?>
[/code]

This is based on an example found at php.net/proc_open

[shoonya]

ooops
you have just pasted the example from php.net

I was not getting the concept of pipes and streams
so any good tutorial or link will work for me

shoonya