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Скрипт проверки:

/*
* Check DNSBL – WIN also – DD
*/
function blacklisted($ip) {
$dnsbl_lists = array(«bl.spamcop.net», «list.dsbl.org», «sbl.spamhaus.org»);
if ($ip && preg_match(‘/^([0-9]{1, 3})\.([0-9]{1, 3})\.([0-9]{1, 3})\.([0-9]{1, 3})/’, $ip)) {
$reverse_ip = implode(«.», array_reverse(explode(«.», $ip)));
$on_win = substr(PHP_OS, 0, 3) == «WIN» ? 1 : 0;
foreach ($dnsbl_lists as $dnsbl_list){
if (function_exists(«checkdnsrr»)) {
if (checkdnsrr($reverse_ip . «.» . $dnsbl_list . «.», «A»)) {
return $reverse_ip . «.» . $dnsbl_list;
}
} else if ($on_win == 1) {
$lookup = «»;
@exec(«nslookup -type=A » . $reverse_ip . «.» . $dnsbl_list . «.», $lookup);
foreach ($lookup as $line) {
if (strstr($line, $dnsbl_list)) {
return $reverse_ip . «.» . $dnsbl_list;
}
}
}
}
}
return false;
}
?>

function cff_php2js($a)
{
if (is_null($a)) return 'null';
if ($a === false) return 'false';
if ($a === true) return 'true';
if (is_scalar($a)) {
$a = addslashes($a);
$a = str_replace("\n", '\n', $a);
$a = str_replace("\r", '\r', $a);
$a = preg_replace('{(</)(script)}i', "$1'+'$2", $a);
if (is_numeric($a))
return "$a";
else
return "'$a'";
}
$isList = true;
for ($i=0, reset($a); $i<count($a); $i++, next($a))
if (key($a) !== $i) { $isList = false; break; }
$result = array();
if ($isList) {
foreach ($a as $v) $result[] = cff_php2js($v);
return '[ ' . implode(', ', $result) . ' ]'."\n";
} else {
foreach ($a as $k=>$v)
$result[] = cff_php2js($k) . ': ' . cff_php2js($v);
return '{ ' . implode(", ", $result) . ' }'."\n";
}
}

Function to find real IP address in PHP

function getRealIpAddr()
{
if (!empty($_SERVER['HTTP_CLIENT_IP']))
//check ip from share internet
{
$ip=$_SERVER['HTTP_CLIENT_IP'];
}
elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
//to check ip is pass from proxy
{
$ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
}
else
{
$ip=$_SERVER['REMOTE_ADDR'];
}
return $ip;
}

In this PHP function, first attempt is to get the direct IP address of client’s machine, if not available then try for forwarded for IP address using HTTP_X_FORWARDED_FOR. And if this is also not available, then finally get the IP address using REMOTE_ADDR.

You just have to make sure to use it on an associative array and not an object.
Example below

Good (assuming Object has not been overloaded or extended):

var array = new Object(); //this is safe only if you can assure object has not been extended.
//use the below if Object has been extended
var array;

//everything below here works fine regardless of the two above cases
array['something'] = ‘yay’;
array['somethingelse'] = ‘more’;

for ( keyVar in array ) {
alert(array[keyVar]);
}

Bad:

var array = new Array(); //uh oh, array is an object which means it’s an associative array

//the below loop will actually give you results, despite never putting «values» into
//the array variable. This is because array has functions defined from the Array() object
//which will be grabbed by the keyVar since objects are really associative arrays
for ( keyVar in array ) {
alert(array[keyVar]);
}

Regular expressions were split in 2 stages, to avoid deleting single carriage returns (also matched by \s) but still delete all blank lines and multiple linefeeds or spaces, trimming operations took place in 2 stages.

function webpage2txt($url)
{
$user_agent = «Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)»;
$ch = curl_init(); // initialize curl handle
curl_setopt($ch, CURLOPT_URL, $url); // set url to post to
curl_setopt($ch, CURLOPT_FAILONERROR, 1); // Fail on errors
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); // allow redirects
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // return into a variable
curl_setopt($ch, CURLOPT_PORT, 80); //Set the port number
curl_setopt($ch, CURLOPT_TIMEOUT, 15); // times out after 15s
curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);
$document = curl_exec($ch);
$search = array(‘@<script[^>]*?>.*?</script>@si’, // Strip out javascript
‘@<style[^>]*?>.*?</style>@siU’, // Strip style tags properly
‘@<[\/\!]*?[^<>]*?>@si’, // Strip out HTML tags
‘@<![\s\S]*?–[ \t\n\r]*>@’, // Strip multi-line comments including CDATA
‘/\s{2,}/’,
);
$text = preg_replace($search, «\n», html_entity_decode($document));
$pat[0] = «/^\s+/»;
$pat[2] = «/\s+\$/»;
$rep[0] = «»;
$rep[2] = » «;
$text = preg_replace($pat, $rep, trim($text));
return $text;
}

MVC example:

http://www.denover.com/uploads/mvc-sample.tar.gz