php mysqli prepared statement code example

Example 1: 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();
Copy

Example 2: 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 3: php prepared statement upload file

$query = "INSERT INTO contracts(`filename`,`filedata`, `filetype`,`filesize`) VALUES (?,?,?,?)";
$stmt = $con->prepare($query);
$null = NULL;
$stmt->bind_param("sbsi", $filename, $filedata, $filetype,$filesize);
$stmt->send_long_data(1, file_get_contents($_FILES['upload']['tmp_name'])); 
$stmt->execute();

Example 4: 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();
Copy

Example 5: 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 );