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i currently have the follwoing code which checks that answers against questions on a quiz ive been working on, it reads the answers from a text file, can it be easilt changed so it reads from a sql database instead?
[QUOTE]
<?php
// Quiz-o-matic ’76 By Matt Hughes
function Open_Database ($server, $user, $password, $database)
{
$db = mysql_connect($server,$user,$password) or die(“Cant connect to database: “.mysql_error());
mysql_select_db($database) or die(“Cant select database: “.mysql_error());
return $db;
}
function Table_Exists($table_name)
{
$Table = mysql_query(“show tables like ‘” .
$table_name . “‘”);
if(mysql_fetch_row($Table) === false)
return(false);
return(true);
}
function Create_Response_Array (&$responses, $answerarray)
{
$numberofquestions = count($answerarray);
for($i=1 ;$i<=$numberofquestions ; $i++){
$j = $i-1;
$responses[$j] = $_POST[“q$i”];
}
}
function Create_CorrectAnswer_Array ($responses, $answerarray, &$correctanswers)
{
$numberofquestions = count($answerarray);
for($i=0 ;$i<=$numberofquestions-1 ; $i++){
if (rtrim($responses[$i])==rtrim($answerarray[$i])){
$correctanswers[$i]=1;
} else {
$correctanswers[$i]=0;
}
}
}
function Display_Results($correctanswers, $responses, $answerarray, $display_answers, $show_results){
$numberofquestions = count($correctanswers);
$score = Get_Score($correctanswers);
echo “<table width=’75%’ border=’0′><tr><td bgcolor=’#00CCFF’><font size=’3′ face=’Verdana, Arial, Helvetica, sans-serif’><strong>Your test Results</strong></font></td></tr>”;
echo “<tr><td><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’>Score = $score%</font></td></tr></table><br>”;
if ($display_answers) {
echo “<table width=’75%’ border=’1′ bordercolor=’#999999′ bgcolor=’#FFFFFF’>”;
} else {
echo “<table width = ‘10%’ border=’1′ bordercolor=’#999999′ bgcolor=’#FFFFFF’>”;
}
for($i=1 ;$i<=$numberofquestions ; $i++)
{
$j=$i-1;
if ($correctanswers[$j]) {
if ($display_answers) {
echo “<tr><td width=’5%’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’>#$i</font></td><td width=’6%’ align=’center’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’><img src=’images/checkmark.jpg’></font></td><td width=’89%’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’><strong>$answerarray[$j]</strong></font></td></tr>”;
} else {
echo “<tr><td width=’5%’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’>#$i</font></td><td width=’6%’ align=’center’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’><img src=’images/checkmark.jpg’></font></td></tr>”;
}
} else {
if ($display_answers) {
echo “<tr><td width=’5%’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’>#$i</font></td><td width=’6%’ align=’center’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’><img src=’images/xmark.jpg’ width=’15’ height=’14’></font></td><td width=’89%’ bgcolor=’#FF0000′><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’><strong>Correct Answer = $answerarray[$j]</strong></font></td></tr>”;
} else {
echo “<tr><td width=’5%’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’>#$i</font></td><td width=’6%’ align=’center’><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’><img src=’images/xmark.jpg’ width=’15’ height=’14’></font></td></tr>”;
}
}
}
echo “</table><br>”;
if ($show_results) {
echo “<br><a href=’results.php’><strong><font size=’2′ face=’Verdana, Arial, Helvetica, sans-serif’>View all test results</font></strong></a><br>”;
}
}
function Get_Score ($correctanswers)
{
$numbercorrect = (array_count_values ($correctanswers));
return round(($numbercorrect[1]/count($correctanswers))*100, 0);
}
function Populate_Database ($correctanswers, $testname, $name)
{
$score = Get_Score($correctanswers);
$sql = “insert into $testname (name,score) values (‘$name’,’$score’)”;
$result = mysql_query($sql);
$id = mysql_insert_id();
$numberofquestions=count($correctanswers);
for($i=1 ;$i<=$numberofquestions ; $i++)
{
$fieldname=”q$i”;
$j = $i-1;
$sql = “UPDATE $testname SET $fieldname=’$correctanswers[$j]’ WHERE id =$id”;
$result = mysql_query($sql);
}
}
?>