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Furquan Ahmad
5,148 PointsHow do i redirect the user to the right page when they click submit
I want to redirect the user to the correct graph according to their grade, so if they got an A they will be redirected to a certain age, compared to someone that got a grade B.
The error is : Parse error: syntax error, unexpected T_VARIABLE, expecting '(' in /home/u717042829/public_html/predicter.php on line 149
<?php
if (empty($result['final_maths'])) {
header('location:error.html');
}
else {
echo "<h1>The predicted grade for " . $name . " is a " . $result['final_maths'] . "</h1>";
$grade = $result['final_maths'];
$_SESSION['predict'] = $grade;
}
?>
<!-- Button -->
<form action="" method="POST">
<input type="submit" name="graph" value ="graph"/>
</form>
<?php
if (isset($_POST['graph'])) {
if $grade == "A" {
header("location:gradea.html");
}
}
?>
The rest of my code if needed:
<?php
error_reporting(E_ALL); ini_set('display_errors', 1);
require("includes/config.php");
// Require: use your own path
require_once 'morris.php';
require_once 'morris-charts.php';
// Optional: include chart line
require_once 'morris-line-charts.php';
//if not logged in redirect to login page
if(!$user->is_logged_in()){ header('Location: login.php'); }
//define page title
$title = "Predict a Student's Grade";
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Past Student</title>
<!-- Bootstrap Core CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- Custom Fonts -->
<link href="font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<script src="js/bootstrap.min.js" type="text/javascript"></script>
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.css">
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/morris.js/0.5.1/morris.min.js"></script>
</head>
<body>
<?php
//posted form data
if (isset($_POST['name'])) {
$name = $_POST['name'];
$subject1 = $_POST['subject1'];
$grade1 = $_POST['grade1'];
$subject2 = $_POST['subject2'];
$grade2 = $_POST['grade2'];
$subject3 = $_POST['subject3'];
$grade3 = $_POST['grade3'];
$subject4 = $_POST['subject4'];
$grade4 = $_POST['grade4'];
$attendance = $_POST['attendance'];
$gender = $_POST['gender'];
// <--------------Validation for form Post----------------------->
$error = true;
//validation make sure 2 of the same subjects haven't been chosen
if ($subject1 == $subject2 or $subject1 == $subject3 or $subject1 == $subject4) {
$error = false;
}
elseif ($subject2 == $subject1 or $subject2 == $subject3 or $subject2 == $subject4) {
$error = false;
}
elseif ($subject3 == $subject1 or $subject3 == $subject2 or $subject3 == $subject4) {
$error = false;
}
// checks if the data entered is an integer
elseif ( is_int( $attendance ) && $attendance >= 0 && $attendance <= 100 ) {
$error = false; // If the above condition is met, $error is set to false
}
if ($error == true){
//selecting from the database
$query = $db->prepare("SELECT * FROM paststudent WHERE subject1 = :subject1 AND grade1 = :grade1");
$query->bindValue(':subject1', $subject1, PDO::PARAM_STR);
$query->bindValue(':grade1', $grade1, PDO::PARAM_STR);
$query->execute();
$result = $query->fetch(PDO::FETCH_ASSOC);
// fetch() instead of fetchAll just gets the first result
// Output the predicted grade (or any item from the array) like this
}
else {
header("location:error.php");
}
}?>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="jumbotron">
<h1>
<?php
if (empty($result['final_maths'])) {
header('location:error.html');
}
else {
echo "<h1>The predicted grade for " . $name . " is a " . $result['final_maths'] . "</h1>";
$grade = $result['final_maths'];
$_SESSION['predict'] = $grade;
}
?>
<!-- Button -->
<form action="" method="POST">
<input type="submit" name="graph" value ="graph"/>
</form>
<?php
if (isset($_POST['graph'])) {
if $grade == "A" {
header("location:gradea.html");
}
}
?>
<p>
Please remember that these predictions does not mean the student will get this grade
<br>
<i> "It always seems impossible until it is done" </i>
</p>
<a class="btn btn-primary btn-lg btn-block" href="memberpage.php" role="button">Home ⌂</a>
</div>
</div>
</div>
</form>
</fieldset>
</div>
</body>
</html>
1 Answer
Sean T. Unwin
28,690 PointsYou don't have brackets surrounding the if statement:
<?php
if $grade == "A" {
header("location:gradea.html");
}
/* should be */
if ($grade == "A") {
header("location:gradea.html");
}
?>