How can you determine how many visitors are currently viewing your website using PHP?

To determine how many visitors are currently viewing your website using PHP, you can utilize sessions to track unique visitors. Each time a visitor accesses your website, you can increment a counter stored in a session variable. This way, you can keep track of the number of active visitors in real-time. 

session_start();

if (!isset($_SESSION['visitors'])) {
    $_SESSION['visitors'] = 1;
} else {
    $_SESSION['visitors']++;
}

echo "Number of current visitors: " . $_SESSION['visitors'];

Keywords

PHP Real-time Visitor count Web analytics Server-side tracking

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