ar_user_login.php

ar_user_login.php

<?php 
// ar_user_login : on WordPress login, post a message to slack
function ar_user_login($user_login) {
	
	// get the user info 
	$user = get_user_by('login',$user_login);
	
	// get the user ID 
	$user_id = $user->ID;
	
	// get the user's slack username (this is custom meta)
	$user_slackname = get_user_meta($user_id, 'slack_username',true);
	
	// get the current site url 
	$site_url = get_bloginfo('url');
	
	// prepare a message to be posted to slack 
	$message = '@'.$user_slackname.' just logged in to '.$site_url;
	
	// post the message to slack in the general channel 
	ar_post_to_slack($message,'#general','WordPress bot',':taco:');
}

add_action('wp_login', 'ar_user_login', 99, 2);

?>