resultfetcher.php

<?php
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DESC : A small script that fetches the even semester 2011 results (SASTRA University)
@author : Vignesh Rajagopalan


**/
    
  $regno = $_REQUEST['reg'];

  $ch = curl_init();
  curl_setopt ($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_URL, "http://www.sastra.edu/results2011/");
  curl_setopt($ch, CURLOPT_POSTFIELDS,       "__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=%2FwEPDwUJNjk1MjY5MDQ5D2QWAgIDD2QWBAIHDzwrAA8BAA8WBB4LXyFEYXRhQm91bmRnHgtfIUl0ZW1Db3VudGZkZAIJDw9kDxAWAWYWARYCHg5QYXJhbWV0ZXJWYWx1ZWUWAWZkZBgBBQxEZXRhaWxzVmlldzEPZ2S5uBAJbk20yOaYSK1hI892sR%2BNVA%3D%3D&__EVENTVALIDATION=%2FwEWAwL3xOupAgLs0bLrBgKM54rGBrse22jFhESkdm9A%2BcmrHsUeYK5F&TextBox1={$regno}&Button1=Submit");
  curl_setopt ($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 (CK) Firefox/3.0.1");
  curl_setopt ($ch, CURLOPT_REFERER, "http://www.sastra.edu/results2011/");
  curl_setopt ($ch, CURLOPT_HEADER, false);
  curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
  $string = curl_exec($ch);
  curl_close($ch);

/**
 *	Adding parsing support for Results, to support JSON export
 *	@author Ashwanth Kumar <ashwanth@ashwanthkumar.in>
 *	@date 19/06/2011
 **/ 
	// Extract the contens out
	preg_match("/<td>Reg No<\/td><td>(.+)<\/td>/",$string, $regMatch);
	$registerNumber = $regMatch[1];
	
	preg_match("/<td>SGPA<\/td><td>(.*)<\/td>/",$string, $sgMatch);
	$sgpaValue = $sgMatch[1];
	
	preg_match("/<td>CGPA<\/td><td>(.*)<\/td>/",$string, $cgMatch);
	$cgpaValue = $cgMatch[1];
	
	preg_match("/<td>Result<\/td><td>(.+)<\/td>/",$string, $resMatch);
	
	$courseWiseGrades = (explode("  ",$resMatch[1]));
	
	$course = array();
	
	foreach($courseWiseGrades as $courseGrade) {
		$course[] = explode(" ",$courseGrade);
	}
	
	/** 
	 *	A simple datastructure to export the results content
	 **/
	class Result {
		public $registerNumber;
		public $course;
		public $sgpa;
		public $cgpa;
	}
	
	$result = new Result;
	$result->registerNumber = $registerNumber;
	$result->course = $course;
	$result->sgpa = $sgpaValue;
	$result->cgpa = $cgpaValue;

	header("Content-type: application/json");
	echo json_encode($result);