What steps should be taken to ensure the security and efficiency of updating text in a MySQL database using PHP?

To ensure the security and efficiency of updating text in a MySQL database using PHP, it is important to use prepared statements to prevent SQL injection attacks and optimize the query by only updating the necessary fields. 

<?php

// Establish a connection to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

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

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

// Prepare and execute the update query
$stmt = $conn->prepare("UPDATE table_name SET column_name = ? WHERE id = ?");
$stmt->bind_param("si", $text, $id);

$text = "New text";
$id = 1;

$stmt->execute();

// Close the statement and connection
$stmt->close();
$conn->close();

?>

Keywords

SQL injection prepared statements mysqli_real_escape_string error handling data validation

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