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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
522 |
|
523 | // Quick check to see if an honest cookie has expired |
524 | if ( $expired < time() ) { |
525 | do_action('auth_cookie_expired', $cookie_elements); |
526 | return false; |
527 | } |
528 |
|
529 | $user = get_user_by('login', $username); |
530 | if ( ! $user ) { |
531 | do_action('auth_cookie_bad_username', $cookie_elements); |
532 | return false; |
533 | } |
534 |
|
535 | $pass_frag = substr($user->user_pass, 8, 4); |
536 |
|
537 | $key = wp_hash($username . $pass_frag . '|' . $expiration, $scheme); |
538 | $hash = hash_hmac('md5', $username . '|' . $expiration, $key); |
539 |
|
540 | if ( $hmac != $hash ) { |