How can PHP developers efficiently handle marking threads as read or unread in a forum application?

To efficiently handle marking threads as read or unread in a forum application, PHP developers can create a database table to store the read/unread status for each user and thread combination. When a user reads a thread, mark the corresponding entry in the database as read. When a user marks a thread as unread, update the entry in the database accordingly. 

// Assuming you have a database connection established

// Function to mark a thread as read for a specific user
function markThreadAsRead($userId, $threadId) {
    // Perform SQL query to update the read status in the database
    $query = "UPDATE thread_read_status SET status = 'read' WHERE user_id = $userId AND thread_id = $threadId";
    // Execute the query
    // Add error handling as needed
}

// Function to mark a thread as unread for a specific user
function markThreadAsUnread($userId, $threadId) {
    // Perform SQL query to update the read status in the database
    $query = "UPDATE thread_read_status SET status = 'unread' WHERE user_id = $userId AND thread_id = $threadId";
    // Execute the query
    // Add error handling as needed
}

Keywords

PHP forum application marking threads read unread

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