本文实例讲述了php获得网站访问统计信息类Compete API用法。分享给大家供大家参考。具体如下：

这里使用php获得网站访问统计信息类Compete API，Compete是一个专门用来统计网站信息的网站

<?php// Check for dependenciesif (!function_exists("curl_init")) throw new Exception("Compete needs the CURL PHP extension.");if (!function_exists("json_decode")) throw new Exception("Compete needs the JSON PHP extension.");/** * Base Compete exception class. */class CompeteException extends Exception {}/** * Represents Compete API. * @author Egor Gumenyuk (boo1ean0807 at gmail dot com) * @package Compete * @license Apache 2.0 */class Compete{ /**  * Default usr agent.  */ const USER_AGENT  = "Compete API wrapper for PHP"; /**  * Base url for api calls.  */ const API_BASE_URL = "http://apps.compete.com/sites/:domain/trended/:metric/?apikey=:key"; /**  * Masks for url params.  */ private $_urlKeys = array(":domain", ":metric", ":key"); private $_apiKey; /**  * For url cleaning.  */ private $_toSearch = array("http://", "www."); private $_toReplace = array("", ""); /**  * List of available metrics.  */ private $_availableMetrics = array(       // Description   Auth type  "uv",   // Unique Visitors Basic  "vis",  // Visits      Basic  "rank",  // Rank       Basic  "pv",   // Page Views    All-Access  "avgstay",// Average Stay   All-Access  "vpp",  // Visits/Person  All-Access  "ppv",  // Pages/Visit   All-Access  "att",  // Attention    All-Access  "reachd", // Daily Reach   All-Access  "attd",  // Daily Attention All-Access  "gen",  // Gender      All-Access  "age",  // Age       All-Access  "inc",  // Income      All-Access ); /**  * List of available methods for __call() implementation.  */ private $_metrics = array(  "uniqueVisitors" => "uv",  "visits"     => "vis",  "rank"      => "rank",  "pageViews"   => "pv",  "averageStay"  => "avgstay",  "visitsPerson"  => "vpp",  "pagesVisit"   => "ppv",  "attention"   => "att",  "dailyReach"   => "reachd",  "dailyAttention" => "attd",  "gender"     => "gen",  "age"      => "age",  "income"     => "inc" ); /**  * Create access to Compete API.  * @param string $apiKey user"s api key.  */ public function __construct($apiKey) {  $this->_apiKey = $apiKey; } /**  * Implement specific methods.  */ public function __call($name, $args) {  if (array_key_exists($name, $this->_metrics) && isset($args[0]))   return $this->get($args[0], $this->_metrics[$name]);  throw new CompeteException($name . " method does not exist."); } /**  * Get data from Compete.  * @param string $site some domain.  * @param string $metric metric to get.  * @return stdClass Compete data.  * @throws CompeteException  */ public function get($site, $metric) {  if (!in_array($metric, $this->_availableMetrics))   throw new CompeteException($metric . " - wrong metric.");  $values = array(   $this->_prepareUrl($site),   $metric,   $this->_apiKey  );  // Prepare call url  $url = str_replace($this->_urlKeys, $values, self::API_BASE_URL);  // Retrieve data using HTTP GET method.  $data = json_decode($this->_get($url));  // Because of unsuccessful responses contain "status_message".  if (!isset($data->status_message))   return $data;  throw new CompeteException("Status: " . $data->status . ". " .$data->status_message); } /**  * Cut unnecessary parts of url.  * @param string $url some url.  * @return string trimmed url.  */ private function _prepareUrl($url) {  return str_replace($this->_toSearch, $this->_toReplace, $url); } /**  * Execute http get method.  * @param string $url request url.  * @return string response.  */ private function _get($url) {  $ch = curl_init();  curl_setopt($ch, CURLOPT_URL, $url);  curl_setopt($ch, CURLOPT_USERAGENT, self::USER_AGENT);  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  return curl_exec($ch); }}

希望本文所述对大家的php程序设计有所帮助。