What is the difference between using int and datetime data types for storing timestamps in PHP and MySQL?

When storing timestamps in MySQL, using the int data type is more efficient as it requires less storage space compared to using the datetime data type. However, using the datetime data type allows for easier manipulation and formatting of the timestamp within MySQL queries. In PHP, timestamps can be stored as integers or as datetime objects, with datetime objects providing more built-in functionality for date and time manipulation. 

// Storing timestamp as int in MySQL
$timestamp = time(); // Get current timestamp
$query = "INSERT INTO table_name (timestamp_column) VALUES ($timestamp)";
$result = mysqli_query($connection, $query);

// Storing timestamp as datetime in MySQL
$timestamp = date('Y-m-d H:i:s'); // Get current timestamp in datetime format
$query = "INSERT INTO table_name (timestamp_column) VALUES ('$timestamp')";
$result = mysqli_query($connection, $query);

// Retrieving and manipulating timestamp in PHP
$timestamp = strtotime($row['timestamp_column']); // Convert timestamp to int
$date = date('Y-m-d', $timestamp); // Format timestamp as date
echo $date;

Keywords

int datetime data types timestamps MySQL

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