What are the best practices for accurately counting and displaying the number of guests in a PHP forum?

To accurately count and display the number of guests in a PHP forum, you can use a session variable to keep track of the number of guests currently browsing the forum. You can increment this variable when a guest visits the forum and decrement it when they leave. To display the number of guests, you can simply echo out the value of the session variable. 

// Start the session
session_start();

// Increment the guest count when a guest visits the forum
if(!isset($_SESSION['guest_count'])) {
    $_SESSION['guest_count'] = 1;
} else {
    $_SESSION['guest_count']++;
}

// Decrement the guest count when a guest leaves the forum
if(isset($_SESSION['guest_count']) && $_SESSION['guest_count'] > 0) {
    $_SESSION['guest_count']--;
}

// Display the number of guests
echo "Number of guests: " . $_SESSION['guest_count'];

Keywords

PHP forum guest count display accuracy

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