why can't I call this function?

[kenvinp]

Fatal error: Call to undefined function: socket_create() in J:\Web¿ª·¢\PHP¿ª·¢\Óʼþ\send.php on line 48

function smtp_mail($host,$port,$user,$pass,$debug=false)
{
....
$this->socket = socket_create (AF_INET, SOCK_STREAM, SOL_TCP);
...........

php version :4.3

[superwormy]

It's undefined, does your version of PHP have these functions available? Is it compiled correctly with the socket extensions?