What are the implications of the Unix-Timestamp year-2038 problem when storing date/time data in PHP and MySQL?

The Unix-Timestamp year-2038 problem arises from the fact that Unix time is traditionally stored as a signed 32-bit integer, which will overflow on January 19, 2038. To solve this issue, one can switch to using a 64-bit integer or a different data type to store timestamps.

// Example of storing date/time data using a 64-bit integer in PHP and MySQL
$timestamp = strtotime('2038-01-01 00:00:00');
$timestamp = (string)$timestamp; // Convert to string to ensure no data loss
$query = "INSERT INTO table_name (timestamp_column) VALUES ('$timestamp')";
// Execute query using MySQL connection