date("Y-m-d H:i:s", strtotime($_POST['timestamp']));

echo date("Y-m-d H:i:s", time());

date("d.m.Y", strtotime($mysqltimestamp)

<?php

// Assuming you have established a MySQL database connection

​

// Query to retrieve the current date and time from MySQL

$query = "SELECT NOW() AS current_datetime";

$result = mysqli_query($connection, $query);

​

// Check if the query was successful

if ($result) {

    // Fetch the result row

    $row = mysqli_fetch_assoc($result);

​

    // Retrieve the current datetime

    $datetime = $row['current_datetime'];

​

    // Format the datetime as desired (e.g., "Y-m-d H:i:s")

    $formattedDatetime = date('Y-m-d H:i:s', strtotime($datetime));

​

    // Output the formatted datetime

    echo "Formatted Datetime: " . $formattedDatetime;

} else {

    // Handle query error

    echo "An error occurred.";

}

​

// Remember to close the database connection when you're done

mysqli_close($connection);

?>