Provide an IP geographical location query class again-PHP Tutorial-php.cn

IP geographical location query class

/**
File name: IpLocation.class.php
* IP geographical location query class (I uploaded the main file and a test file. There is also QQWry.Dat, which you can download from the Innocence IP library because there is It’s over 6M so I won’t upload it here)
*
* @author Ma Bingyao
* @version 1.5
* @copyright 2005 CoolCode.CN
*/
class IpLocation {
/**
* QQWry.Dat file pointer
* @var resource
*/
var $fp;
/**
* Offset address of the first IP record
* @var int
*/
var $firstip ;
/**
* Offset address of the last IP record
* @var int
*/
var $lastip;
/**
* Total number of IP records (excluding version information records)
* @var int
*/
var $totalip;
/**
* Constructor, open the QQWry.Dat file and initialize the information in the class
* @param string $filename
* @return IpLocation
*/
function __construct($filename = "QQWry .Dat") {
$this->fp = 0;
if (($this->fp = @fopen($filename, 'rb')) !== false) {
$this->firstip = $this->getlong();
$this->lastip = $this->getlong();
$this->totalip = ($this->lastip - $this->firstip) / 7;
//Register the destructor so that it is executed at the end of program execution
register_shutdown_function(array(&$this, '__construct'));
}
}
/**
* Return the read long integer
* @access private
* @return int
*/
function getlong() {
//Convert the read 4 bytes of little-endian encoding into a long integer
$result = unpack('Vlong', fread($this->fp, 4));
return $result['long'];
}
/**
* Returns the read 3-byte long integer
*
* @access private
* @return int
*/
function getlong3() {
//Convert the read 3 bytes of little-endian encoding into a long integer
$result = unpack('Vlong', fread($this->fp, 3).chr(0));
return $result['long'];
}
/**
* Returns the compressed IP address that can be compared
*
* @access private
* @param string $ip
* @return string
*/
function packip($ip) {
// Convert the IP address into a long integer. If the IP address is wrong in PHP5, False will be returned.
// At this time, intval will convert the Flese into an integer -1, and then compress it into big-endian encoded string
return pack('N', intval(ip2long($ip)));
}
/**
* Return the read string
*
* @access private
* @param string $data
* @return string
*/
function getstring($data = "") {
$ char = fread($this->fp, 1);
while (ord($char) > 0) { // The string is saved in C format, in
if ($ip < $beginip) { // When the user's IP is less than the starting IP address of the intermediate record
$u = $i - 1; // Modify the upper boundary of the search to the intermediate record minus one
} else {
fseek($this->fp, $this->getlong3());
$endip = strrev(fread($this->fp, 4)); // Get the end IP address of the intermediate record
if ($ip > $endip) { // When the user's IP is greater than the end IP address of the intermediate record
$l = $i + 1; // Modify the lower boundary of the search to the intermediate record plus one
} else { // When the user's IP is within the IP range of the intermediate record
$findip = $this->firstip + $i * 7;
break; // It means the result is found and the loop is exited
}
}
}
//Get The IP geographical location information found
fseek($this->fp, $findip);
$location['beginip'] = long2ip($this->getlong()); // The beginning of the range where the user IP is located Address
$offset = $this->getlong3();
fseek($this->fp, $offset);
$location['endip'] = long2ip($this->getlong()); / / End address of the user IP range
$byte = fread($this->fp, 1); // Flag byte
switch (ord($byte)) {
case 1: // Flag byte is 1 , indicating that both country and regional information are redirected at the same time
$countryOffset = $this->getlong3(); // Redirect address
fseek($this->fp, $countryOffset);
$byte = fread($ this->fp, 1); // Flag byte
switch (ord($byte)) {
case 2: // Flag byte is 2, indicating that the country information has been redirected again
fseek($this-> ;fp, $this->getlong3());
$location['country'] = $this->getstring();
fseek($this->fp, $countryOffset + 4);
$location ['area'] = $this->getarea();
break;
default: // Otherwise, it means that the country information is not redirected
$location['country'] = $this->getstring($byte );
$location['area'] = $this->getarea();
break;
}
break;
case 2: // The flag byte is 2, indicating that the country information is redirected
fseek($ this->fp, $this->getlong3());
$location['country'] = $this->getstring();
fseek($this->fp, $offset + 8);
$location['area'] = $this->getarea();
break;
default: // Otherwise, it means that the country information is not redirected
$location['country'] = $this->getstring ($byte);
$location['area'] = $this->getarea();
break;
}
if ($location['country'] == " CZ88.NET") { // CZ88 .NET indicates that there is no valid information
$location['country'] = "Unknown";
}
if ($location['area'] == " CZ88.NET") {
$location['area'] = " ";
}
return $location;
}
/**
* Destructor, used to automatically close the open file after the page execution ends.
*
*/
function __desctruct() {
if ($this->fp) {
fclose($this->fp);
}
$this->fp = 0;
}
}
?>

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require_once('IpLocation.class.php');
$ip='127.0.0.1';
$idADDR=new IpLocation();
print_r($idADDR->getlocation($ ip));
?>

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/**
* IP geographical location query class
*
* @author Ma Bingyao
* @version 1.5
*/
class IpLocation {
/**
* QQWry.Dat file pointer
* @var resource
*/
var $fp;
/**
* Offset address of the first IP record
* @var int
*/
var $firstip ;
/**
* Offset address of the last IP record
* @var int
*/
var $lastip;
/**
* Total number of IP records (excluding version information records)
* @var int
*/
var $totalip;
/**
* Constructor, open the QQWry.Dat file and initialize the information in the class
* @param string $filename
* @return IpLocation
*/
function __construct($filename = "QQWry .Dat") {
$this->fp = 0;
if (($this->fp = @fopen($filename, 'rb')) !== false) {
$this->firstip = $this->getlong();
$this->lastip = $this->getlong();
$this->totalip = ($this->lastip - $this->firstip) / 7;
//Register the destructor so that it is executed at the end of program execution
register_shutdown_function(array(&$this, '__construct'));
}
}
/**
* Return the read long integer
* @access private
* @return int
*/
function getlong() {
//Convert the read 4 bytes of little-endian encoding into a long integer
$result = unpack('Vlong', fread($this->fp, 4));
return $result['long'];
}
/**
* Returns the read 3-byte long integer
*
* @access private
* @return int
*/
function getlong3() {
//Convert the read 3 bytes of little-endian encoding into a long integer
$result = unpack('Vlong', fread($this->fp, 3).chr(0));
return $result['long'];
}
/**
* Returns the compressed IP address that can be compared
*
* @access private
* @param string $ip
* @return string
*/
function packip($ip) {
// Convert the IP address into a long integer. If the IP address is wrong in PHP5, False will be returned.
// At this time, intval will convert the Flese into an integer -1, and then compress it into big-endian encoded string
return pack('N', intval(ip2long($ip)));
}
/**
* Return the read string
*
* @access private
* @param string $data
* @return string
*/
function getstring($data = "") {
$ char = fread($this->fp, 1);
while (ord($char) > 0) { // The string is saved in C format, in
if ($ip < $beginip) { // When the user's IP is less than the starting IP address of the intermediate record
$u = $i - 1; // Modify the upper boundary of the search to the intermediate record minus one
} else {
fseek($this->fp, $this->getlong3());
$endip = strrev(fread($this->fp, 4)); // Get the end IP address of the intermediate record
if ($ip > $endip) { // When the user's IP is greater than the end IP address of the intermediate record
$l = $i + 1; // Modify the lower boundary of the search to the intermediate record plus one
} else { // When the user's IP is within the IP range of the intermediate record
$findip = $this->firstip + $i * 7;
break; // It means the result is found and the loop is exited
}
}
}
//Get The IP geographical location information found
fseek($this->fp, $findip);
$location['beginip'] = long2ip($this->getlong()); // The beginning of the range where the user IP is located Address
$offset = $this->getlong3();
fseek($this->fp, $offset);
$location['endip'] = long2ip($this->getlong()); / / End address of the user IP range
$byte = fread($this->fp, 1); // Flag byte
switch (ord($byte)) {
case 1: // Flag byte is 1 , indicating that both country and regional information are redirected at the same time
$countryOffset = $this->getlong3(); // Redirect address
fseek($this->fp, $countryOffset);
$byte = fread($ this->fp, 1); // Flag byte
switch (ord($byte)) {
case 2: // Flag byte is 2, indicating that the country information has been redirected again
fseek($this-> ;fp, $this->getlong3());
$location['country'] = $this->getstring();
fseek($this->fp, $countryOffset + 4);
$location ['area'] = $this->getarea();
break;
default: // Otherwise, it means that the country information is not redirected
$location['country'] = $this->getstring($byte );
$location['area'] = $this->getarea();
break;
}
break;
case 2: // The flag byte is 2, indicating that the country information is redirected
fseek($ this->fp, $this->getlong3());
$location['country'] = $this->getstring();
fseek($this->fp, $offset + 8);
$location['area'] = $this->getarea();
break;
default: // Otherwise, it means that the country information is not redirected
$location['country'] = $this->getstring ($byte);
$location['area'] = $this->getarea();
break;
}
if ($location['country'] == " CZ88.NET") { // CZ88 .NET indicates that there is no valid information
$location['country'] = "Unknown";
}
if ($location['area'] == " CZ88.NET") {
$location['area'] = " ";
}
return $location;
}
/**
* Destructor, used to automatically close the open file after the page execution ends.
*
*/
function __desctruct() {
if ($this->fp) {
fclose($this->fp);
}
$this->fp = 0;
}
}
?>

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