mysqli prepared statement php code example

Example 1: sql repare php

$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}

$stmt = $conn->prepare("INSERT INTO MyGuests (firstname, lastname, email) VALUES (?, ?, ?)");
$stmt->bind_param("sss", $firstname, $lastname, $email);

$firstname = "John";
$lastname = "Doe";
$email = "[email protected]";
$stmt->execute();

echo "New records created successfully";

$stmt->close();
$conn->close();

Example 2: mysqli_connect using prepare statement

$stmt = $mysqli->prepare("INSERT INTO myTable (name, age) VALUES (?, ?)");
$stmt->bind_param("si", $_POST['name'], $_POST['age']);
$stmt->execute();
$stmt->close();
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Example 3: mysqli_connect using prepare statement

$stmt = $mysqli->prepare("DELETE FROM myTable WHERE id = ?");
$stmt->bind_param("i", $_SESSION['id']);
$stmt->execute();
$stmt->close();
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Example 4: php mysql prepare query

$stmt = $mysqli->prepare("SELECT * FROM myTable WHERE name = ? AND age = ?");
$stmt->bind_param("si", $_POST['name'], $_POST['age']);
$stmt->execute();
$stmt->close();

Example 5: mysqli_connect using prepare statement

$stmt = $mysqli->prepare("UPDATE myTable SET name = ? WHERE id = ?");
$stmt->bind_param("si", $_POST['name'], $_SESSION['id']);
$stmt->execute();
$stmt->close();
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Example 6: php my sql prepare bind param with multiple statements

$array_of_values = array( "Brasil", "Argentina" );
$types = "ss";
$mysqli_stmt->bind_param( $types, ...$array_of_values );