some strange errors that make no sense

Anon

ok so this is my first ever attempt at php, and what i wanted to do was create a script that would load a file of ips and ports, put them into an array and connect to each pair and get the http header info. Unfortunately I can't get it to work, and some of the errors I receive make absolutely no sense at all.

Here are the errors:

Notice: Undefined variable: i in c:\program files\apache group\apache\htdocs\listinfo.php on line 14

Notice: Undefined variable: i in c:\program files\apache group\apache\htdocs\listinfo.php on line 18

Notice: Undefined index: in c:\program files\apache group\apache\htdocs\listinfo.php on line 18

Fatal error: Call to undefined function: socket_create() in c:\program files\apache group\apache\htdocs\listinfo.php on line 22

^The php_socket.dll is enabled in php.ini so i don't know what that problem is. Below I have included the code for you to peruse 🙂

<?php
error_reporting (E_ALL);

$filename = "c:/program files/apache group/apache/htdocs/ip.txt";
$fp = fopen($filename, "r");
$ip_port = fread($fp, filesize($filename));
//info is in one long string with carriage return separating
fclose($fp);

//separate ip/port pairs into arrays
//now $line[0] has a ip-port pair, etc
//need to separate ip and port of each pair now
$line = explode("\n", $ip_port);
while ($i <= sizeof($line))
{
//explode to get ip/port

$info_pair = explode (":", $line [$i]);

//create a socket to connect to the ip address and port

$socket = socket_create(AF_INET, SOCK_STREAM, 0);
if ($socket < 0) { echo "Couldn't create the socket mang :(\nReason: " . socket_strerror ($socket) . "\n";}
else { echo "Socket creation is money :)\n";}

echo "Attempting to connect to '$line[0]' on port '$line[1]'...";
$result = socket_connect ($socket, $line[0], $line[1]);
if ($result < 0) {echo "Couldn't connect mang :(\nReason: ($result)" . socket_strerror($result) . "\n";}
else {echo "Socket connection all good in da hood :)\n";}

//all right, we should be connected; now to see what kind of info we can gather.

$in = "HEAD / HTTP/1.0\r\n\r\n";
$out = '';

echo "Sending HTTP HEAD request mang...";
socket_write ($socket, $in, strlen ($in));
echo "Word.\n";

echo "Reading the response:\n\n";
while ($out = socket_read ($socket, 2048)) {echo $out;}

echo "Closing socket...";
socket_close ($socket);
echo "Ok it be closed.\n\n";

$i++;

}

echo "IP/Port Pair List is Complete.\n";
echo "Program written by miteymous 2002.";

Anon

The first three are not errors, they're notices: you're using values from the variables they mention without first giving them values in shte script. You can turn this off by changing the error reporting level to E_ALL&~E_NOTICE or, better still, setting $i to zero before you use it (why not use a for loop instead of a while?)

As for the fatal error on socket_create; the docs list that function as EXPERIMENTAL. Use at own risk. So, you're on your own there. It probably wasn't compiled in to the dll you have - it isn't in mine.

That can be tested:

echo function_exists('socket_create') ?'Socket_create installed' : 'Socket_create NOT installed';

Anon

Thanx a lot grumbler. I guess I really didn't think about it being experimental, because they have it listed in the online manual at www.php.net. That must be what it is. 🙂 Still, it would have been nice to see if it worked for my very first program 😃