unix performance with php

I'm not quite if this is a unix problem or something to do with php.

What's working:
ok what I've done so far is a php script that logs onto the unix server (AIX4.3) and sends the topas command, then echo's the result back onto the webbrowser.

What's not working:
i want to get the value next to idle but dont quite know how i can do that. and also the value does not display on the output (image 2). any one know y that is?

an alternative could be a different command that displays a similar thing?

Thanks

Mark

image 1
image 2

<?php  
	$username='root';
	$password='sibi123';

	$header1=(	
				chr(0xFF).chr(0xFB).chr(0x1F).chr(0xFF).chr(0xFB).chr(0x20).chr(0xFF).chr(0xFB).chr(0x18).chr(0xFF).chr(0xFB).chr(0x27).chr(0xFF).chr(0xFD).chr(0x01).
				chr(0xFF).chr(0xFB).chr(0x03).chr(0xFF).chr(0xFD).chr(0x03).chr(0xFF).chr(0xFC).chr(0x23).chr(0xFF).chr(0xFC).chr(0x24).chr(0xFF).chr(0xFA).chr(0x1F).chr(0x00).chr(0x50).
				chr(0x00).chr(0x18).chr(0xFF).chr(0xF0).chr(0xFF).chr(0xFA).chr(0x20).chr(0x00).chr(0x33).chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0x2C).chr(0x33).chr(0x38).chr(0x34).
				chr(0x30).chr(0x30).chr(0xFF).chr(0xF0).chr(0xFF).chr(0xFA).chr(0x27).chr(0x00).chr(0xFF).chr(0xF0).chr(0xFF).chr(0xFA).chr(0x18).chr(0x00).chr(0x58).chr(0x54).chr(0x45).
				chr(0x52).chr(0x4D).chr(0xFF).chr(0xF0)
			); 
	
	$header2=(	
				chr(0xFF).chr(0xFC).chr(0x01).chr(0xFF).chr(0xFC).chr(0x22).chr(0xFF).chr(0xFE).chr(0x05).chr(0xFF).chr(0xFC).chr(0x21)
			);
	
	$fp=pfsockopen("172.19.1.38",23); 
	
	fputs($fp,$header1); 
	sleep(1); 
	fputs($fp,$header2); 
	sleep(1); 
	
	fputs($fp,"$username\r"); 
	sleep(1); 
	fputs($fp,"$password\r"); 
	sleep(1); 
	fputs($fp,"\r"); 
	sleep(3); 
	fputs($fp,"\r"); 
	sleep(3); 
	fputs($fp,"q \r"); 
	sleep(3); 
	fputs($fp,"topas \r"); 
	sleep(1); 
	
	$output=fread($fp,128); 
	$stat=socket_get_status($fp); 
	$output.=fread($fp, $stat["unread_bytes"]); 
	
	$output = explode("\n", $output); 
	unset($output['0']); 
	$output = implode("\n", $output); 
	
	$output = str_replace("\n", "<br>", $output); 
	echo $output; 
	fclose($fp); 
?> 

image 1
image 2