IP Catching
Just for educational purpose. You can limit number of IPs to get your offer or catch thieves on downloading. I don’t know where you will use this but this is simple but powerful.
Here’s the code:
<?php
$v_ip = "$REMOTE_ADDR";
$fd = fopen("visitorIPs.log", "r");
$value = "";
while(!feof($fd)){
$value .= fread($fd, 4096);
}
fclose($fd);
$value=explode("|",$value);
if (count($value)<300) {
$result = -1;
for ($i = 0; $i <= count($value); $i++) {
if (strcmp($value[$i], $v_ip) == 0) {
$result = $i;
}
}
if ($result == -1) {
$file = fopen("visitorIPs.log", "a");
fputs($file, $v_ip."|", strlen($v_ip."|"));
fclose($file);
echo "Congratulations, you made on one of the first 300 limit!";
} else {
echo "Thanks for visiting again!";
}
} else {
echo "Sorry, the 300 limit is already used! Better luck on the next offer.";
}
 ?>
Save it as .php file.
