MjM8082 Posted September 6, 2011 Share Posted September 6, 2011 Right now my application only displays the answers and problems when the user hits the score button. But when the user hits the score button I want my application to only display the problems that the user got wrong in the test. Here is my code for this applicaiton.. it is small and simple, just not sure how to do this? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Lab 5</title> </head> <body> <?php define ('ROWS', 3); define ('COLS', 3); define ('MAX_NUMBER', 12); date_default_timezone_set('America/New_York'); if (isset($_POST['btn_score'])) { //print_r ($_POST); $time1 = $_POST['ts']; $time1_object = new DateTime($time1); $now = new DateTime(); $time_span = $now->diff($time1_object); $minutes = $time_span->format('%i'); $seconds = $time_span->format('%s'); $seconds+= $minutes * 60; echo "It took $seconds seconds to complete the test<hr />"; foreach ($_POST as $problem => $answer) { if ($problem <> "btn_score" && $problem <> "ts") { //echo "$problem -- $answer <br />"; $problem = explode('_', $problem); $num1 = $problem[2]; $num2 = $problem[3]; echo "$num1 * $num2 === $answer <br />"; } } } ?> <h1>Lab 5</h1> <form name="lab5" method="post" action="lab5b.php"> <?php $now = new DateTime(); //echo $now->format('Y-m-d H:i:s'); echo "<input type='hidden' name='ts' value='" . $now->format('Y-m-d H:i:s') . "'>"; ?> <table border="1" cellspacing="5" cellpadding="5"> <?php $no_of_problems = 0; for ($row=0; $row<ROWS; $row++) { echo "<tr>"; for ($col=0; $col<COLS; $col++) { $num1 = mt_rand(1,MAX_NUMBER); $num2 = mt_rand(1,MAX_NUMBER); echo "<td>$num1 * $num2 </td>"; echo "<td><input type='text' size='2' name=${no_of_problems}_mult_${num1}_${num2}></td>"; $no_of_problems++; } echo "</tr>"; } $colspan = 2 * COLS; echo "<tr><td colspan=$colspan align='right'><input type='submit' value='Score' name='btn_score'></td></tr>"; ?> </table> </form> </body> </html> Quote Link to comment Share on other sites More sharing options...
WebStyles Posted September 6, 2011 Share Posted September 6, 2011 instead of this: echo "$num1 * $num2 === $answer <br />"; use this: if($num1 * $num2 != $answer) echo "$num1 * $num2 === $answer <br />"; Quote Link to comment Share on other sites More sharing options...
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