I`ve seen the following notation here: http://www.php.net/manual/en/features.http-auth.php
What is
($users[$data['username']]
for?
Is it array and sub array?
Would you please give me a clear example
Thanks
$data['username'] is just key for assocative array
$data = Array(
'username' => 'george';
);
$users = Array(
'george' => "George Clooney",
'angelina' => "Angelina Jolie"
);
echo $users['george']; // George Clooney
echo $users['angelina']; // Angelina Jolie
echo $users[$data['username']]; // George Clooney
echo $data['username']; // george
You should think of it like this:
$username = $data['username'];
$user = $users[$username];
It uses the value from $data['username'] as a key in $users to find a particular user record.
$users is an associate array (see the declaration). $data['username'] is the key used to extract a specific value from that array.