Insert into sql table with php from html form - php

Question

I am trying to insert into my table (courses) in my sql database. But when I run my code (by clicking submit) I get this error:
I am no longer getting an error, I get the message:
New course created successfully
But when I check the database, the course has not been added
This is my code:
<?php
if (isset($_POST['submit'])) {
try {
require "../config.php";
require "../common.php";
$connection = new PDO($dsn, $username, $password);
$connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "INSERT INTO course (courseName, cDescription, programID, programYear, credit)
VALUES (:courseName, :cDescription, :programID, :programYear, :credit)";
$courseName = $_POST['courseName'];
$cDescription = $_POST['cDescription'];
$programID = $_POST['programID'];
$programYear = $_POST['programYear'];
$credit = $_POST['credit'];
$statement = $connection->prepare($sql);
$statement->bindParam(':courseName', $courseName, PDO::PARAM_STR);
$statement->bindParam(':cDescription', $cDescription, PDO::PARAM_STR);
$statement->bindParam(':programID', $programID, PDO::PARAM_STR);
$statement->bindParam(':programYear', $programYear, PDO::PARAM_STR);
$statement->bindParam(':credit', $credit, PDO::PARAM_STR);
$connection->exec($statement);
echo "New course created successfully";
} catch(PDOException $error) {
echo $statement. "<br>" . $error->getMessage();
}
}
?>
<?php include "templates/header.php"; ?>
<h2>Add a course</h2>
<form method="post">
<label for="courseName">Course Name:</label>
<input type="text" name="courseName" id="courseName" required>
<label for="cDescription">Course Description:</label>
<input type="text" name="cDescription" id="cDescription" size="40" required>
<label for="programID">Program ID:</label>
<input type="number" name="programID" id="programID" required>
<label for="programYear">Program Year:</label>
<input type="number" name="programYear" id="programYear" required>
<label for="credit">credit:</label>
<input type="number" name="credit" id="credit" required>
<input type="submit" name="submit" value="Submit">
</form>
Back to home
<?php include "templates/footer.php"; ?>
To try and see what was wrong, I tried simplifying this to, which works
<?php
if (isset($_POST['submit'])) {
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "courseselector";
try {
$conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
// set the PDO error mode to exception
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "INSERT INTO course (courseName, cDescription, programID, programYear, credit)
VALUES ('courseName', 'cDescription', 1, 4, 1)";
// use exec() because no results are returned
$conn->exec($sql);
echo "New record created successfully";
}
catch(PDOException $e)
{
echo $sql . "<br>" . $e->getMessage();
}
$conn = null;
}
?>
<?php include "templates/header.php"; ?>
<h2>Add a course</h2>
<form method="post">
<input type="submit" name="submit" value="Submit">
</form>
Back to home
<?php include "templates/footer.php"; ?>

Answer 1

I was missing
$statement->execute();
Above
$connection->exec($statement);