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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 |
---|---|
562 | $user = get_userdata($user_id); |
563 |
|
564 | $pass_frag = substr($user->user_pass, 8, 4); |
565 |
|
566 | $key = wp_hash($user->user_login . $pass_frag . '|' . $expiration, $scheme); |
567 | $hash = hash_hmac('md5', $user->user_login . '|' . $expiration, $key); |
568 |
|
569 | $cookie = $user->user_login . '|' . $expiration . '|' . $hash; |
570 |
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571 | return apply_filters('auth_cookie', $cookie, $user_id, $expiration, $scheme); |
572 | } |
573 | endif; |
574 |
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575 | if ( !function_exists('wp_parse_auth_cookie') ) : |
576 | /** |
577 | * Parse a cookie into its components |
578 | * |
579 | * @since 2.7 |
580 | * |