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<?php
/**
 * Backend file to manage rating
 *
 */
 
 if($_GET['idName'] == 'id') {
 // add the rating to the field/database
 $fp = fopen('rating.txt', 'a') or die ("Failed to open file: <b>rating.txt</b> for editing.");
 fwrite($fp, ','.$_GET['id']) or die ("Failed to write into file: <b>rating.txt</b>.");
 fclose($fp);
 
 // display the current(new) rating
 $file = file_get_contents('rating.txt');
 $filearray = explode(',', $file);
 echo array_sum($filearray)/count($filearray);
 }
 elseif ($_GET['idName'] == 'newid') {
 // add the rating to the field/database
 $fp = fopen('rating2.txt', 'a') or die ("Failed to open file: <b>rating2.txt</b> for editing.");
 fwrite($fp, ','.$_GET['id']) or die ("Failed to write into file: <b>rating2.txt</b>.");
 fclose($fp);
 
 // display the current(new) rating
 $file = file_get_contents('rating2.txt');
 $filearray = explode(',', $file);
 echo array_sum($filearray)/count($filearray);
 }
 else {
 echo "ERROR";
 }
 
 ?>
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