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May 19, 2014 11:06
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Google Analytics PHP API
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| <?php | |
| /** | |
| * Google Analytics PHP API | |
| * | |
| * This class can be used to retrieve data from the Google Analytics API with PHP | |
| * It fetches data as array for use in applications or scripts | |
| * | |
| * This library is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * This library is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with this library; if not, write to the Free Software | |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| * | |
| * Credits: http://www.alexc.me/ | |
| * parsing the profile XML to a PHP array | |
| * | |
| * | |
| * @link http://www.swis.nl | |
| * @copyright 2009 SWIS BV | |
| * @author Vincent Kleijnendorst - SWIS BV (vkleijnendorst [AT] swis [DOT] nl) | |
| * | |
| * @version 0.1 | |
| */ | |
| class analytics{ | |
| private $_sUser; | |
| private $_sPass; | |
| private $_sAuth; | |
| private $_sProfileId; | |
| private $_sStartDate; | |
| private $_sEndDate; | |
| private $_bUseCache; | |
| private $_iCacheAge; | |
| /** | |
| * public constructor | |
| * | |
| * @param string $sUser | |
| * @param string $sPass | |
| * @return analytics | |
| */ | |
| public function __construct($sUser, $sPass){ | |
| $this->_sUser = $sUser; | |
| $this->_sPass = $sPass; | |
| $this->_bUseCache = false; | |
| $this->auth(); | |
| } | |
| /** | |
| * Google Authentification, returns session when set | |
| */ | |
| private function auth(){ | |
| if (isset($_SESSION['auth'])){ | |
| $this->_sAuth = $_SESSION['auth']; | |
| return; | |
| } | |
| $aPost = array ( 'accountType' => 'GOOGLE', | |
| 'Email' => $this->_sUser, | |
| 'Passwd' => $this->_sPass, | |
| 'service' => 'analytics', | |
| 'source' => 'SWIS-Webbeheer-4.0'); | |
| $sResponse = $this->getUrl('https://www.google.com/accounts/ClientLogin', $aPost); | |
| $_SESSION['auth'] = ''; | |
| if (strpos($sResponse, "\n") !== false){ | |
| $aResponse = explode("\n", $sResponse); | |
| foreach ($aResponse as $sResponse){ | |
| if (substr($sResponse, 0, 4) == 'Auth'){ | |
| $_SESSION['auth'] = trim(substr($sResponse, 5)); | |
| } | |
| } | |
| } | |
| if ($_SESSION['auth'] == ''){ | |
| unset($_SESSION['auth']); | |
| throw new Exception('Retrieving Auth hash failed!'); | |
| } | |
| $this->_sAuth = $_SESSION['auth']; | |
| } | |
| /** | |
| * Use caching (bool) | |
| * Whether or not to store GA data in a session for a given period | |
| * | |
| * @param bool $bCaching (true/false) | |
| * @param int $iCacheAge seconds (default: 10 minutes) | |
| */ | |
| public function useCache($bCaching = true, $iCacheAge = 600){ | |
| $this->_bUseCache = $bCaching; | |
| $this->_iCacheAge = $iCacheAge; | |
| if ($bCaching && !isset($_SESSION['cache'])){ | |
| $_SESSION['cache'] = array(); | |
| } | |
| } | |
| /** | |
| * Get GA XML with auth key | |
| * | |
| * @param string $sUrl | |
| * @return string XML | |
| */ | |
| private function getXml($sUrl){ | |
| return $this->getUrl($sUrl, array(), array('Authorization: GoogleLogin auth=' . $this->_sAuth)); | |
| } | |
| /** | |
| * Sets GA Profile ID (Example: ga:12345) | |
| */ | |
| public function setProfileById($sProfileId){ | |
| $this->_sProfileId = $sProfileId; | |
| } | |
| /** | |
| * Sets Profile ID by a given accountname | |
| * | |
| */ | |
| public function setProfileByName($sAccountName){ | |
| if (isset($_SESSION['profile'])){ | |
| $this->_sProfileId = $_SESSION['profile']; | |
| return; | |
| } | |
| $this->_sProfileId = ''; | |
| $sXml = $this->getXml('https://www.google.com/analytics/feeds/accounts/default'); | |
| $aAccounts = $this->parseAccountList($sXml); | |
| foreach($aAccounts as $aAccount){ | |
| if (isset($aAccount['accountName']) && $aAccount['accountName'] == $sAccountName){ | |
| if (isset($aAccount['tableId'])){ | |
| $this->_sProfileId = $aAccount['tableId']; | |
| } | |
| } | |
| } | |
| if ($this->_sProfileId == ''){ | |
| throw new Exception('No profile ID found!'); | |
| } | |
| $_SESSION['profile'] = $this->_sProfileId; | |
| } | |
| /** | |
| * Returns an array with profileID => accountName | |
| * | |
| */ | |
| public function getProfileList(){ | |
| $sXml = $this->getXml('https://www.google.com/analytics/feeds/accounts/default'); | |
| $aAccounts = $this->parseAccountList($sXml); | |
| $aReturn = array(); | |
| foreach($aAccounts as $aAccount){ | |
| $aReturn[$aAccount['tableId']] = $aAccount['title']; | |
| } | |
| return $aReturn; | |
| } | |
| /** | |
| * get resulsts from cache if set and not older then cacheAge | |
| * | |
| * @param string $sKey | |
| * @return mixed cached data | |
| */ | |
| private function getCache($sKey){ | |
| if ($this->_bUseCache === false){ | |
| return false; | |
| } | |
| if (!isset($_SESSION['cache'][$this->_sProfileId])){ | |
| $_SESSION['cache'][$this->_sProfileId] = array(); | |
| } | |
| if (isset($_SESSION['cache'][$this->_sProfileId][$sKey])){ | |
| if (time() - $_SESSION['cache'][$this->_sProfileId][$sKey]['time'] < $this->_iCacheAge){ | |
| return $_SESSION['cache'][$this->_sProfileId][$sKey]['data']; | |
| } | |
| } | |
| return false; | |
| } | |
| /** | |
| * Cache data in session | |
| * | |
| * @param string $sKey | |
| * @param mixed $mData Te cachen data | |
| */ | |
| private function setCache($sKey, $mData){ | |
| if ($this->_bUseCache === false){ | |
| return false; | |
| } | |
| if (!isset($_SESSION['cache'][$this->_sProfileId])){ | |
| $_SESSION['cache'][$this->_sProfileId] = array(); | |
| } | |
| $_SESSION['cache'][$this->_sProfileId][$sKey] = array( 'time' => time(), | |
| 'data' => $mData); | |
| } | |
| /** | |
| * Parses GA XML to an array (dimension => metric) | |
| * Check http://code.google.com/intl/nl/apis/analytics/docs/gdata/gdataReferenceDimensionsMetrics.html | |
| * for usage of dimensions and metrics | |
| * | |
| * @param array $aProperties (GA properties: metrics & dimensions) | |
| * | |
| * @return array result | |
| */ | |
| public function getData($aProperties = array()){ | |
| $aParams = array(); | |
| foreach($aProperties as $sKey => $sProperty){ | |
| $aParams[] = $sKey . '=' . $sProperty; | |
| } | |
| $sUrl = 'https://www.google.com/analytics/feeds/data?ids=' . $this->_sProfileId . | |
| '&start-date=' . $this->_sStartDate . | |
| '&end-date=' . $this->_sEndDate . '&' . | |
| implode('&', $aParams); | |
| $aCache = $this->getCache($sUrl); | |
| if ($aCache !== false){ | |
| return $aCache; | |
| } | |
| $sXml = $this->getXml($sUrl); | |
| $aResult = array(); | |
| $oDoc = new DOMDocument(); | |
| $oDoc->loadXML($sXml); | |
| $oEntries = $oDoc->getElementsByTagName('entry'); | |
| foreach($oEntries as $oEntry){ | |
| $oTitle = $oEntry->getElementsByTagName('title'); | |
| $sTitle = $oTitle->item(0)->nodeValue; | |
| $oMetric = $oEntry->getElementsByTagName('metric'); | |
| // Fix the array key when multiple dimensions are given | |
| if (strpos($sTitle, ' | ') !== false && strpos($aProperties['dimensions'], ',') !== false){ | |
| $aDimensions = explode(',', $aProperties['dimensions']); | |
| $aDimensions[] = '|'; | |
| $aDimensions[] = '='; | |
| $sTitle = preg_replace('/\s\s+/', ' ', trim(str_replace($aDimensions, '', $sTitle))); | |
| } | |
| $sTitle = str_replace($aProperties['dimensions'] . '=', '', $sTitle); | |
| if( $oMetric->length > 1 ){ | |
| foreach ($oMetric as $key => $value) { | |
| $aResult[$sTitle][] = $oMetric->item($key)->getAttribute('value'); | |
| } | |
| } else { $aResult[$sTitle] = $oMetric->item(0)->getAttribute('value'); } | |
| } | |
| // cache the results (if caching is true) | |
| $this->setCache($sUrl, $aResult); | |
| return $aResult; | |
| } | |
| /** | |
| * Parse XML from account list | |
| * | |
| * @param string $sXml | |
| */ | |
| private function parseAccountList($sXml){ | |
| $oDoc = new DOMDocument(); | |
| $oDoc->loadXML($sXml); | |
| $oEntries = $oDoc->getElementsByTagName('entry'); | |
| $i = 0; | |
| $aProfiles = array(); | |
| foreach($oEntries as $oEntry){ | |
| $aProfiles[$i] = array(); | |
| $oTitle = $oEntry->getElementsByTagName('title'); | |
| $aProfiles[$i]["title"] = $oTitle->item(0)->nodeValue; | |
| $oEntryId = $oEntry->getElementsByTagName('id'); | |
| $aProfiles[$i]["entryid"] = $oEntryId->item(0)->nodeValue; | |
| $oProperties = $oEntry->getElementsByTagName('property'); | |
| foreach($oProperties as $oProperty){ | |
| if (strcmp($oProperty->getAttribute('name'), 'ga:accountId') == 0){ | |
| $aProfiles[$i]["accountId"] = $oProperty->getAttribute('value'); | |
| } | |
| if (strcmp($oProperty->getAttribute('name'), 'ga:accountName') == 0){ | |
| $aProfiles[$i]["accountName"] = $oProperty->getAttribute('value'); | |
| } | |
| if (strcmp($oProperty->getAttribute('name'), 'ga:profileId') == 0){ | |
| $aProfiles[$i]["profileId"] = $oProperty->getAttribute('value'); | |
| } | |
| if (strcmp($oProperty->getAttribute('name'), 'ga:webPropertyId') == 0){ | |
| $aProfiles[$i]["webPropertyId"] = $oProperty->getAttribute('value'); | |
| } | |
| } | |
| $oTableId = $oEntry->getElementsByTagName('tableId'); | |
| $aProfiles[$i]["tableId"] = $oTableId->item(0)->nodeValue; | |
| $i++; | |
| } | |
| return $aProfiles; | |
| } | |
| /** | |
| * Get data from given URL | |
| * Uses Curl if installed, falls back to file_get_contents if not | |
| * | |
| * @param string $sUrl | |
| * @param array $aPost | |
| * @param array $aHeader | |
| * @return string Response | |
| */ | |
| private function getUrl($sUrl, $aPost = array(), $aHeader = array()){ | |
| if (count($aPost) > 0){ | |
| // build POST query | |
| $sMethod = 'POST'; | |
| $sPost = http_build_query($aPost); | |
| $aHeader[] = 'Content-type: application/x-www-form-urlencoded'; | |
| $aHeader[] = 'Content-Length: ' . strlen($sPost); | |
| $sContent = $aPost; | |
| } else { | |
| $sMethod = 'GET'; | |
| $sContent = null; | |
| } | |
| if (function_exists('curl_init')){ | |
| // If Curl is installed, use it! | |
| $rRequest = curl_init(); | |
| curl_setopt($rRequest, CURLOPT_URL, $sUrl); | |
| curl_setopt($rRequest, CURLOPT_RETURNTRANSFER, 1); | |
| if ($sMethod == 'POST'){ | |
| curl_setopt($rRequest, CURLOPT_POST, 1); | |
| curl_setopt($rRequest, CURLOPT_POSTFIELDS, $aPost); | |
| } else { | |
| curl_setopt($rRequest, CURLOPT_HTTPHEADER, $aHeader); | |
| } | |
| $sOutput = curl_exec($rRequest); | |
| if ($sOutput === false){ | |
| throw new Exception('Curl error (' . curl_error($rRequest) . ')'); | |
| } | |
| $aInfo = curl_getinfo($rRequest); | |
| if ($aInfo['http_code'] != 200){ | |
| // not a valid response from GA | |
| if ($aInfo['http_code'] == 400){ | |
| throw new Exception('Bad request (' . $aInfo['http_code'] . ') url: ' . $sUrl); | |
| } | |
| if ($aInfo['http_code'] == 403){ | |
| throw new Exception('Access denied (' . $aInfo['http_code'] . ') url: ' . $sUrl); | |
| } | |
| throw new Exception('Not a valid response (' . $aInfo['http_code'] . ') url: ' . $sUrl); | |
| } | |
| curl_close($rRequest); | |
| } else { | |
| // Curl is not installed, use file_get_contents | |
| // create headers and post | |
| $aContext = array('http' => array ( 'method' => $sMethod, | |
| 'header'=> implode("\r\n", $aHeader) . "\r\n", | |
| 'content' => $sContent)); | |
| $rContext = stream_context_create($aContext); | |
| $sOutput = @file_get_contents($sUrl, 0, $rContext); | |
| if (strpos($http_response_header[0], '200') === false){ | |
| // not a valid response from GA | |
| throw new Exception('Not a valid response (' . $http_response_header[0] . ') url: ' . $sUrl); | |
| } | |
| } | |
| return $sOutput; | |
| } | |
| /** | |
| * Sets the date range for GA data | |
| * | |
| * @param string $sStartDate (YYY-MM-DD) | |
| * @param string $sEndDate (YYY-MM-DD) | |
| */ | |
| public function setDateRange($sStartDate, $sEndDate){ | |
| $this->_sStartDate = $sStartDate; | |
| $this->_sEndDate = $sEndDate; | |
| } | |
| /** | |
| * Sets de data range to a given month | |
| * | |
| * @param int $iMonth | |
| * @param int $iYear | |
| */ | |
| public function setMonth($iMonth, $iYear){ | |
| $this->_sStartDate = date('Y-m-d', strtotime($iYear . '-' . $iMonth . '-01')); | |
| $this->_sEndDate = date('Y-m-d', strtotime($iYear . '-' . $iMonth . '-' . date('t', strtotime($iYear . '-' . $iMonth . '-01')))); | |
| } | |
| /** | |
| * Get visitors for given period | |
| * | |
| */ | |
| public function getVisitors(){ | |
| return $this->getData(array( 'dimensions' => 'ga:day', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:day')); | |
| } | |
| /** | |
| * Get pageviews for given period | |
| * | |
| */ | |
| public function getPageviews(){ | |
| return $this->getData(array( 'dimensions' => 'ga:day', | |
| 'metrics' => 'ga:pageviews', | |
| 'sort' => 'ga:day')); | |
| } | |
| /** | |
| * Get visitors per hour for given period | |
| * | |
| */ | |
| public function getVisitsPerHour(){ | |
| return $this->getData(array( 'dimensions' => 'ga:hour', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:hour')); | |
| } | |
| /** | |
| * Get Browsers for given period | |
| * | |
| */ | |
| public function getBrowsers(){ | |
| $aData = $this->getData(array( 'dimensions' => 'ga:browser,ga:browserVersion', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:visits')); | |
| arsort($aData); | |
| return $aData; | |
| } | |
| /** | |
| * Get Operating System for given period | |
| * | |
| */ | |
| public function getOperatingSystem(){ | |
| $aData = $this->getData(array( 'dimensions' => 'ga:operatingSystem', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:visits')); | |
| // sort descending by number of visits | |
| arsort($aData); | |
| return $aData; | |
| } | |
| /** | |
| * Get screen resolution for given period | |
| * | |
| */ | |
| public function getScreenResolution(){ | |
| $aData = $this->getData(array( 'dimensions' => 'ga:screenResolution', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:visits')); | |
| // sort descending by number of visits | |
| arsort($aData); | |
| return $aData; | |
| } | |
| /** | |
| * Get referrers for given period | |
| * | |
| */ | |
| public function getReferrers(){ | |
| $aData = $this->getData(array( 'dimensions' => 'ga:source', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:source')); | |
| // sort descending by number of visits | |
| arsort($aData); | |
| return $aData; | |
| } | |
| /** | |
| * Get search words for given period | |
| * | |
| */ | |
| public function getSearchWords(){ | |
| $aData = $this->getData(array( 'dimensions' => 'ga:keyword', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:keyword')); | |
| // sort descending by number of visits | |
| arsort($aData); | |
| return $aData; | |
| } | |
| /** | |
| * Get Traffic Sources | |
| * | |
| */ | |
| public function getTrafficSources(){ | |
| return $this->getData(array( 'dimensions'=>'ga:source,ga:medium', | |
| 'metrics'=>'ga:visits,ga:pageviews,ga:timeOnSite,ga:exits', | |
| 'sort'=>'-ga:visits')); | |
| } | |
| /** | |
| * Get Total metrics | |
| * Total Visits | |
| * Total Pageviews | |
| * Total Visitors | |
| * | |
| */ | |
| public function getTotalMetrics(){ | |
| return $this->getData( array( 'metrics'=>'ga:visits,ga:pageviews,ga:visitors' ) ); | |
| } | |
| /** | |
| * Get visitors for given period | |
| * sorted by month | |
| * | |
| */ | |
| public function getVisits(){ | |
| return $this->getData(array( 'dimensions' => 'ga:day,ga:month', | |
| 'metrics' => 'ga:visits', | |
| 'sort' => 'ga:month')); | |
| } | |
| } |
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