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PHP Update Data di MySQL

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Update Data Dalam Tabel MySQL Menggunakan MySQLi dan PDO

Pernyataan UPDATE digunakan untuk memperbarui catatan yang ada dalam tabel:

UPDATE table_name
SET column1=value, column2=value2,...
WHERE some_column=some_value 

Perhatikan klausa WHERE dalam sintaks UPDATE: Klausa WHERE menentukan yang merekam atau catatan yang harus diperbarui. Jika Anda menghilangkan klausa WHERE, semua catatan akan diperbarui!

Untuk mempelajari lebih lanjut tentang SQL, kunjungi SQL tutorial .

Mari kita lihat di "MyGuests" tabel:

id nama depan nama keluarga e-mail reg_date
1 John Kelinci betina [email protected] 2014/10/22 14:26:15
2 Mary moe [email protected] 2014/10/23 10:22:30

Contoh berikut memperbarui rekor dengan id = 2 di "MyGuests" tabel:

Contoh (MySQLi Object-oriented)

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

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

$sql = "UPDATE MyGuests SET lastname='Doe' WHERE id=2";

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

$conn->close();
?>

Contoh (MySQLi Procedural)

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

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

$sql = "UPDATE MyGuests SET lastname='Doe' WHERE id=2";

if (mysqli_query($conn, $sql)) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . mysqli_error($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);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $sql = "UPDATE MyGuests SET lastname='Doe' WHERE id=2";

    // Prepare statement
    $stmt = $conn->prepare($sql);

    // execute the query
    $stmt->execute();

    // echo a message to say the UPDATE succeeded
    echo $stmt->rowCount() . " records UPDATED successfully";
    }
catch(PDOException $e)
    {
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;
?>

Setelah catatan diperbarui, meja akan terlihat seperti ini:

id nama depan nama keluarga e-mail reg_date
1 John Kelinci betina [email protected] 2014/10/22 14:26:15
2 Mary Kelinci betina [email protected] 2014/10/23 10:22:30

❮ Sebelumnya Berikutnya Bab ❯