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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 |
|---|---|
| 490 | * |
| 491 | * @since 2.5 |
| 492 | * |
| 493 | * @param string $cookie Optional. If used, will validate contents instead of cookie's |
| 494 | * @param string $scheme Optional. The cookie scheme to use: auth, secure_auth, or logged_in |
| 495 | * @return bool|int False if invalid cookie, User ID if valid. |
| 496 | */ |
| 497 | function wp_validate_auth_cookie($cookie = '', $scheme = '') { |
| 498 | if ( ! $cookie_elements = wp_parse_auth_cookie($cookie, $scheme) ) { |
| 499 | do_action('auth_cookie_malformed', $cookie, $scheme); |
| 500 | return false; |
| 501 | } |
| 502 | |
| 503 | extract($cookie_elements, EXTR_OVERWRITE); |
| 504 | |
| 505 | $expired = $expiration; |
| 506 | |
| 507 | // Allow a grace period for POST and AJAX requests |
| 508 | if ( defined('DOING_AJAX') || 'POST' == $_SERVER['REQUEST_METHOD'] ) |