Tryag File Manager

/home/cluster1/data/bu01/1121861/html/jlex/qbank/qbank_quiz.php4

<?
include_once("../php4/query_object.php4");
include_once("../php4/project_defaults.php4");
include_once("../php4/mysql_to_xml.php4");

function get_xml_for_question($session_vars) {
    $qo = $_SESSION["qo"];
    $ids = $_SESSION["ids"];
    $converter = $_SESSION["converter"];
    $cur_question = $_SESSION["cur_question"];
    $header_subjects = $_SESSION["header_subjects"];
    $header_sections = $_SESSION["header_sections"];
    $header_keywords = $_SESSION["header_keywords"];

$stylesheet = "question.xsl";

$xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
    $xml .= "<?xml-stylesheet href='$stylesheet' type='text/xsl'?>\n";
    $xml .= "<quiz>\n";
    $xml .= "<subjects>$header_subjects</subjects>\n";
    $xml .= "<sections>$header_sections</sections>\n";
    $xml .= "<keywords>$header_keywords</keywords>\n";
    $xml .= "<cur_question>".($cur_question+1)."</cur_question>\n";
    $xml .= "<num_questions>".count($ids)."</num_questions>\n";
    $group = $converter->load_resultset_into_group($qo,$ids[$cur_question]);
    $template = explode(" ",trim($group->template));
    $xml .= $group->to_xml_3($template,false);
    $xml .= "</quiz>";
    return $xml;
}

session_start();
$form_vars = array_merge($_GET, $_POST);
$function = $form_vars["function"];
if($function == "start_quiz") {
    $qo = new query_object();
    $qo->set_project("qbank");
    $i = 0;
    
    $subject = $form_vars["subject"];
    $header_subjects = "";
    if(count($subject) > 0) {
	$subjects = "";
	foreach($subject as $s) {
	    $subjects .= $s."|";
	    $header_subjects .= "$s, ";
	}
	$subjects = substr($subjects,0,-1);
	$header_subjects = substr($header_subjects,0,-2);
	
	$form_vars["db_cols_".$i] = "subject";
	$form_vars["reg_exp_".$i] = "contains sequence";
	$form_vars["string_".$i] = $subjects;
	
	$form_vars["connective_".$i] = "AND";
	$i++;
    }
    
    $section = $form_vars["section"];
    $header_sections = "";

if(count($section) > 0) {
	$sections = "";
	foreach($section as $s) {
	    $sections .= $s."|";
	    $header_sections .= "$s, ";
	}
	$sections = substr($sections,0,-1);
	$header_sections = substr($header_sections,0,-2);
	$form_vars["db_cols_".$i] = "section";
	$form_vars["reg_exp_".$i] = "contains sequence";
	$form_vars["string_".$i] = $sections;
	
	$form_vars["connective_".$i] = "AND";
	$i++;
    }
    
    
    $header_keywords = trim($form_vars["keywords"]);
    $keywords = explode(" ",$header_keywords);
    if(count($keywords) > 0) {
	$words = "";
	$in_phrase = false;
	foreach($keywords as $s) {	
	    if(ereg("^\"",$s)) {
		$in_phrase = true;
		$s = substr($s,1);
	    }
	    if($in_phrase) {
		$words .= "$s ";
		if(ereg("\"$",$s)) {
		    $words = substr($words,0,-2)."|";                  
		    $in_phrase = false;                 
		}
	    }
	    else {
		$words .= $s."|";
	    }
	}
	$words = substr($words,0,-1);
	$form_vars["db_cols_".$i] = "keywords";
	$form_vars["reg_exp_".$i] = "contains sequence";
	$form_vars["string_".$i] = $words;
    }

$pd = new project_defaults();
    $defaults = $pd->get_project_defaults("defaults.xml");
    $form_vars["project"] = "qbank";
    $qo->fill_query_object($form_vars,$defaults);    
    $converter = new mysql_to_xml();
    $qo = $converter->query_database($qo);
    $ids = $qo->get_main_ids();
    shuffle($ids);

$_SESSION["ids"] = $ids;
    $_SESSION["cur_question"] = 0;
    $_SESSION["qo"] = $qo;
    $_SESSION["converter"] = $converter;
    $_SESSION["header_subjects"] = $header_subjects;
    $_SESSION["header_sections"] = $header_sections;
    $_SESSION["header_keywords"] = $header_keywords;

$xml = get_xml_for_question($_SESSION);
    header("Content-Type: application/xml");
    echo $xml;
}
else if($function == "next_question") {
    $cur_question = $_SESSION["cur_question"];
    $cur_question++;
    $_SESSION["cur_question"] = $cur_question;
    $xml = get_xml_for_question($_SESSION);
    header("Content-Type: application/xml");
    echo $xml;
}
else if ($function == "prev_question") {
    $cur_question = $_SESSION["cur_question"];
    $cur_question--;
    $_SESSION["cur_question"] = $cur_question;
    $xml = get_xml_for_question($_SESSION);
    header("Content-Type: application/xml");
    echo $xml;
}
else if($function == "goto_question") {
    $cur_question = $form_vars["question_number"];
    $cur_question--;
    $_SESSION["cur_question"] = $cur_question;
    $xml = get_xml_for_question($_SESSION);
    header("Content-Type: application/xml");
    echo $xml;
}