How can I get online user in php?

How can I see online users in php?

Show activity on this post.1Create a database table that stores: ... 2Upon each pageload, store hash of user IP and Useragent combination along with current timestamp into database.3Query database for number of unique entries that have timestamp that falls into NOW() - X minutes range.

How can I check if a user is registered in php?

To check if a particular value exists in the database, all you need to do is run a SELECT query.1$select = mysqli_query($conn, "SELECT * FROM users WHERE username = '". $_POST['username']."'"); if(mysqli_num_rows($select)) {2exit('This username already exists'); }

How do I register a user in php?

How to create a Registration and Login System with PHP and MySQL1Create a Database and Database Table.2Connect to the Database.3Session Create for Logged in User.4Create a Registration and Login Form.5Make a Dashboard Page.6Create a Logout (Destroy session)7CSS File Create.

Can php control user access?

Controls user permissions for specific php pages i.e. provides or denies access to specific pages (or user interface elements) based on the user's role. For example: a user may be allowed access to the "Students" page but not to the "Teachers" page.

How to get the user who executes the current PHP script?

If you want to get the name of the user who executes the current PHP script, you can use

How to find the username PHP is running as?

If you want to know the username PHP is running as you can use POSIX functions (or shell_exec with 'whoami'). On Windows this function is returning the username PHP is running as.

How to get a list of all users on a website?

Depending on the size of your user base, if you want to get a list of everyone online, you could use a memcache getmulti call with an array of "user{userid}_isonline" keys for all of your users.

How to check if a user is online or not?

Then whenever another user attempts to check if the first user is online, you can check it against the database using a 'pulse' check: If this query returns more than 0 rows, the user is considered online. Show activity on this post.