Use variable outside class/function - php

Question

I'm trying to use the $rank variable outside the function and class.
class UrlInfo {
protected static $ActionName = 'UrlInfo';
protected static $ResponseGroupName = 'Rank,LinksInCount';
protected static $ServiceHost = 'awis.amazonaws.com';
protected static $ServiceEndpoint = 'awis.us-west-1.amazonaws.com';
protected static $NumReturn = 10;
protected static $StartNum = 1;
protected static $SigVersion = '2';
protected static $HashAlgorithm = '******';
protected static $ServiceURI = "/api";
protected static $ServiceRegion = "us-west-1";
protected static $ServiceName = "awis";
public function __construct($accessKeyId, $secretAccessKey, $site) {
$this->accessKeyId = $accessKeyId;
$this->secretAccessKey = $secretAccessKey;
$this->site = $site;
$now = time();
$this->amzDate = gmdate("Ymd\THis\Z", $now);
$this->dateStamp = gmdate("Ymd", $now);
}
/**
* Get site info from AWIS.
*/
public function getUrlInfo() {
$canonicalQuery = $this->buildQueryParams();
$canonicalHeaders = $this->buildHeaders(true);
$signedHeaders = $this->buildHeaders(false);
$payloadHash = hash('sha256', "");
$canonicalRequest = "GET" . "\n" . self::$ServiceURI . "\n" . $canonicalQuery . "\n" . $canonicalHeaders . "\n" . $signedHeaders . "\n" . $payloadHash;
$algorithm = "AWS4-HMAC-SHA256";
$credentialScope = $this->dateStamp . "/" . self::$ServiceRegion . "/" . self::$ServiceName . "/" . "aws4_request";
$stringToSign = $algorithm . "\n" . $this->amzDate . "\n" . $credentialScope . "\n" . hash('sha256', $canonicalRequest);
$signingKey = $this->getSignatureKey();
$signature = hash_hmac('sha256', $stringToSign, $signingKey);
$authorizationHeader = $algorithm . ' ' . 'Credential=' . $this->accessKeyId . '/' . $credentialScope . ', ' . 'SignedHeaders=' . $signedHeaders . ', ' . 'Signature=' . $signature;
$url = 'https://' . self::$ServiceHost . self::$ServiceURI . '?' . $canonicalQuery;
$ret = self::makeRequest($url, $authorizationHeader);
// echo "\nResults for " . $this->site .":\n\n";
// echo $ret;
self::parseResponse($ret);
}
protected function sign($key, $msg) {
return hash_hmac('sha256', $msg, $key, true);
}
protected function getSignatureKey() {
$kSecret = 'AWS4' . $this->secretAccessKey;
$kDate = $this->sign($kSecret, $this->dateStamp);
$kRegion = $this->sign($kDate, self::$ServiceRegion);
$kService = $this->sign($kRegion, self::$ServiceName);
$kSigning = $this->sign($kService, 'aws4_request');
return $kSigning;
}
/**
* Builds headers for the request to AWIS.
* #return String headers for the request
*/
protected function buildHeaders($list) {
$params = array(
'host' => self::$ServiceEndpoint,
'x-amz-date' => $this->amzDate
);
ksort($params);
$keyvalue = array();
foreach($params as $k => $v) {
if ($list)
$keyvalue[] = $k . ':' . $v;
else {
$keyvalue[] = $k;
}
}
return ($list) ? implode("\n",$keyvalue) . "\n" : implode(';',$keyvalue) ;
}
/**
* Builds query parameters for the request to AWIS.
* Parameter names will be in alphabetical order and
* parameter values will be urlencoded per RFC 3986.
* #return String query parameters for the request
*/
protected function buildQueryParams() {
$params = array(
'Action' => self::$ActionName,
'Count' => self::$NumReturn,
'ResponseGroup' => self::$ResponseGroupName,
'Start' => self::$StartNum,
'Url' => $this->site
);
ksort($params);
$keyvalue = array();
foreach($params as $k => $v) {
$keyvalue[] = $k . '=' . rawurlencode($v);
}
return implode('&',$keyvalue);
}
/**
* Makes request to AWIS
* #param String $url URL to make request to
* #param String authorizationHeader Authorization string
* #return String Result of request
*/
protected function makeRequest($url, $authorizationHeader) {
// echo "\nMaking request to:\n$url\n";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_TIMEOUT, 4);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Accept: application/xml',
'Content-Type: application/xml',
'X-Amz-Date: ' . $this->amzDate,
'Authorization: ' . $authorizationHeader
));
$result = curl_exec($ch);
curl_close($ch);
return $result;
}
/**
* Parses XML response from AWIS and displays selected data
* #param String $response xml response from AWIS
*/
public static function parseResponse($response) {
$xml = new SimpleXMLElement($response,LIBXML_ERR_ERROR,false,'http://awis.amazonaws.com/doc/2005-07-11');
if($xml->count() && $xml->Response->UrlInfoResult->Alexa->count()) {
$info = $xml->Response->UrlInfoResult->Alexa;
$links = $info->ContentData->LinksInCount;
$rank = $info->TrafficData->Rank;
echo "<br>Links in Count: " .$links;
echo "<br>Rank: " .$rank;
);
}
}
}
}
Does anyone have an idea?
Thanks!
I want to add the $rank to an array;
$arrayinfo = array(
"domain" => $ip,
"ip" => $ipphp,
"Rank" => $rank,);

Answer 1

What if you declare $rank as a static variable like the $name of following example
<?php
class Test{
static $name;
static function setName($name){
self::$name=$name;
}
}
Test::setName("Test Name");
Test::setName("Test1 Name");
echo Test::$name; //Test1 Name