A prepared statement (also known as
parameterized statement) is simply a SQL query template containing
placeholder instead of the actual parameter values.
Here is example of PDO statements.
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "myDBPDO";
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);
// prepare sql and bind parameters
$stmt = $conn->prepare("INSERT INTO MyGuests (firstname, lastname, email)
VALUES (:firstname, :lastname, :email)");
$stmt->bindParam(':firstname', $firstname);
$stmt->bindParam(':lastname', $lastname);
$stmt->bindParam(':email', $email);
// insert a row
$firstname = "John";
$lastname = "Doe";
$email = "example@gmail.com";
$stmt->execute();
// insert another row
$firstname = "Mary";
$lastname = "Moe";
$email = "demo@gmail.com";
$stmt->execute();
// insert another row
$firstname = "Julie";
$lastname = "Dooley";
$email = "test@gmail.com";
$stmt->execute();
echo "New records created successfully";
}
catch(PDOException $e)
{
echo "Error: " . $e->getMessage();
}
$conn = null;
?>
