85 lines
3.3 KiB
PHP
85 lines
3.3 KiB
PHP
<?php # Script 9.5 - register.php #2
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// This script performs an INSERT query to add a record to the users table.
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$page_title = 'Course Grade';
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include ('includes/header.html');
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// Check for form submission:
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// echo $_SERVER['REQUEST_METHOD'];
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if ($_SERVER['REQUEST_METHOD'] == 'POST') { //remember the difference between post and get?
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require ('./mysqli_connect.php'); // Connect to the db.
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$errors = array(); // Initialize an error array.
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// Check for an email address:
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if (empty($_POST['last_name'])) { //$_POST is a global variable. empty() method determines whether a variable is considered to be empty.
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$errors[] = 'You forgot to enter the last name';
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} else {
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$ln = mysqli_real_escape_string($dbc, trim($_POST['last_name'])); //mysqli_real_escape_strin()escapes special characters in a string for use in an SQL statement.
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}
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if (empty($errors)) { // If there is no errors. If everything's OK.
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// Make the query:
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$q = "SELECT CONCAT (StuLastName, ', ', StuFirstName) AS name, CouLongName AS course,CourseGrades AS grade FROM Students, Courses, StudentClass, ScheduleOfClasses
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WHERE Students.StudentID=StudentClass.StudentID AND
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Courses.CourseID=ScheduleOfClasses.CourseID AND
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ScheduleOfClasses.ScheduleID=StudentClass.ScheduleID AND
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StuLastName='$ln'";
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$r = @mysqli_query ($dbc, $q); // Run the query.
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$num = mysqli_num_rows($r); //return the number of rows selected
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if ($num > 0) { // If it ran OK, display the records.
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// Print how many users there are:
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echo "<p>There is the information for the student you are looking for.</p>\n";
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// Table header.
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echo '<table align="center" cellspacing="3" cellpadding="3" width="75%">
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<tr><td align="left"><b>Student</b></td><td align="left"><b>Course</b></td><td align="left"><b>Grade</b></td></tr>
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';
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// Fetch and print all the records:
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while ($row = mysqli_fetch_array($r, MYSQLI_ASSOC)) { //MYSQLI_ASSOC makes the returned array assortative.
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echo '<tr><td align="left">' . $row['name'] . '</td><td align="left">' . $row['course'] . '</td><td align="left">' . $row['grade'] . '</td></tr>
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';
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}
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echo '</table>'; // Close the table.
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}
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else { // If it did not run OK.
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// Public message:
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echo '<h1>Error</h1>
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<p class="error">There is no student match with the information you provided</p>';
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}
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}
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mysqli_close($dbc); // Close the database connection.
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} // End of the main Submit conditional.
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?>
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<form class="form-horizontal" action="grade.php" method="post">
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<fieldset>
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<legend>Search Course Grade by Student Last Name</legend>
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<div class="form-group">
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<label for="last_name" class="col-lg-2 control-label">Student Last Name</label>
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<div class="col-lg-10">
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<input class="form-control" placeholder="Last Name" autocomplete="off" type="text" name="last_name" id="last_name" size="15" maxlength="20" value="<?php if (isset($_POST['last_name'])) echo $_POST['last_name']; ?>" />
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</div>
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</div>
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<!-- submit button -->
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<div class="form-group">
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<div class="col-lg-10 col-lg-offset-2">
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<button type="submit" name="submit" class="btn btn-primary">Search Course Grade</button>
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</div>
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</div>
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</fieldset>
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</form>
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<?php include ('includes/footer.html'); ?>
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