json - Using Wordpress Authentication in Xcode -


i building ios app use json api content. how authenticate wordpress db set in order retrieve content available after you've logged in.

<?php require_once('wp-load.php');     $username = $password = "";     // check see if email or username check   if(filter_var($username, filter_validate_email))   		$user = get_user_by('email',$username);   	else   		$user = get_user_by('login',$username);   		  $validuser = false; 	    if ( $user , wp_check_password($password, $user->data->user_pass, $user->id) )   	$validuser = true;   ?>


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