What is the purpose of the MySQL query in the code snippet provided?

The purpose of the MySQL query in the code snippet is to update a specific row in the database table with new values for the 'name' and 'email' columns based on the 'id' provided. To implement the fix, you can use a prepared statement in PHP to safely update the row in the database. Prepared statements help prevent SQL injection attacks by separating SQL logic from user input. Here is a complete PHP code snippet that implements the fix: 

<?php
// Database connection
$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);
}

// Update query using prepared statement
$id = 1;
$name = "John Doe";
$email = "johndoe@example.com";

$stmt = $conn->prepare("UPDATE users SET name = ?, email = ? WHERE id = ?");
$stmt->bind_param("ssi", $name, $email, $id);

if ($stmt->execute()) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . $conn->error;
}

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

Keywords

PHP MySQL query code snippet purpose

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