[zodehala]

PHP Code:

header("Content-Type: text/html; charset=ISO-8859-9");  

exec('ping www.google.com' ,$output, $return_var);

foreach ($output as $value){

    echo $value."<br/>";

} 

above otuput is following

Code:

32 bayt veri ile www.l.google.com [66.249.93.147] 'ping' ediliyor:

66.249.93.147 cevab�: bayt=32 s�re=141ms TTL=242
66.249.93.147 cevab�: bayt=32 s�re=137ms TTL=242
66.249.93.147 cevab�: bayt=32 s�re=139ms TTL=242
66.249.93.147 cevab�: bayt=32 s�re=147ms TTL=242

66.249.93.147 i�in Ping istatisti§i:
Paket: Giden = 4, Gelen = 4, Kaybolan = 0 (0% kay�p),
Mili saniye t�r�nden yakla��k tur s�releri:
En Az = 137ms, En �ok = 147ms, Ortalama = 141ms

why are there problem in turkish characters ?

[UnrealEd]

the response of the exec function is probably returned as a UTF-8 string, so you'll have to convert it to iso-8859-9 before outputting it. You cloud also try changing the charset of your page to utf-8