WordPress provides a function called "get_current_user_id", which is used to retrieve the ID of the currently logged in user. This function comes in handy when you need to retrieve the ID of the current user, for example, to display user-specific content or to check if the user has the necessary permissions to perform a specific action.
The "get_current_user_id" function does not take any parameters, as it retrieves the user ID based on the currently logged-in user. If no user is logged in, the function returns "0".
Here’s an example of how to use the "get_current_user_id" function to display a user-specific message:
$current_user_id = get_current_user_id();
if ( $current_user_id ) {
echo 'Welcome back, user ' . $current_user_id;
} else {
echo 'Please log in to view this content.';
}In this example, we retrieve the ID of the currently logged in user using the "get_current_user_id" function. Then, we use an if statement to check if a user is logged in. If a user is logged in, we display a message that welcomes the user back and includes their user ID. If no user is logged in, we display a message that prompts the user to log in to view the content.
WordPress snippets using the get_current_user_id function
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