How can string functions be used to format time values in PHP and JavaScript?

When working with time values in PHP and JavaScript, string functions can be used to format the time in a more readable way. In PHP, the date() function can be used to format time values according to a specified format. In JavaScript, the toLocaleTimeString() method can be used to format time values based on the user's locale. PHP Code Snippet:

<?php
// Get the current timestamp
$timestamp = time();

// Format the timestamp to display the time in HH:MM:SS format
$formatted_time = date('H:i:s', $timestamp);

echo "Current time is: " . $formatted_time;
?>