PHP

Cara Hapus Data dari Database PHP MySQL

Hapus Data Dari Tabel MySQL Menggunakan MySQLi dan PDO

Pernyataan DELETE digunakan untuk menghapus record dari tabel:

DELETE FROM table_name
WHERE some_column = some_value

Perhatikan klausa WHERE dalam sintaks DELETE: Klausa WHERE menentukan record atau record mana yang harus dihapus. Jika dihilangkan klausa WHERE, semua record akan dihapus!

Mari kita lihat tabel “MyGuests”:

idfirstnamelastnameemailreg_date
1JohnDoejohn@example.com2014-10-22 14:26:15
2MaryMoemary@example.com2014-10-23 10:22:30
3JulieDooleyjulie@example.com2014-10-26 10:48:23

Contoh berikut menghapus record dengan id = 3 di tabel “MyGuests”:

Contoh (MySQLi Object-oriented) :

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Buat Koneksi
$conn = new mysqli($servername, $username, $password, $dbname);
// Periksa Koneksi
if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}

// sql untuk menghapus record
$sql = "DELETE FROM MyGuests WHERE id=3";

if ($conn->query($sql) === TRUE) {
  echo "Record deleted successfully";
} else {
  echo "Error deleting record: " . $conn->error;
}

$conn->close();
?>

Contoh (MySQLi Prosedural) :

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Buat Koneksi
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Periksa Koneksi
if (!$conn) {
  die("Connection failed: " . mysqli_connect_error());
}

// sql untuk menghapus record
$sql = "DELETE FROM MyGuests WHERE id=3";

if (mysqli_query($conn, $sql)) {
  echo "Record deleted successfully";
} else {
  echo "Error deleting record: " . mysqli_error($conn);
}

mysqli_close($conn);
?>

Contoh (PDO) :

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDBPDO";

try {
  $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
  // mengatur mode error  PDO ke exceptions
  $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

  // sql untuk menghapus record
  $sql = "DELETE FROM MyGuests WHERE id=3";

  // gunakan exec() karena tidak ada hasil yang dikembalikan
  $conn->exec($sql);
  echo "Record deleted successfully";
} catch(PDOException $e) {
  echo $sql . "<br>" . $e->getMessage();
}

$conn = null;
?>

Setelah record dihapus, tabel akan terlihat seperti ini:

idfirstnamelastnameemailreg_date
1JohnDoejohn@example.com2014-10-22 14:26:15
2MaryMoemary@example.com2014-10-23 10:22:30

Hanifah Nurbaeti

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Tags: mysqlphp