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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 |
|---|---|
| 439 | * Filter the life span of the post password cookie. |
| 440 | * |
| 441 | * By default, the cookie expires 10 days from creation. To turn this |
| 442 | * into a session cookie, return 0. |
| 443 | * |
| 444 | * @since 3.7.0 |
| 445 | * |
| 446 | * @param int $expires The expiry time, as passed to setcookie(). |
| 447 | */ |
| 448 | $expire = apply_filters( 'post_password_expires', time() + 10 * DAY_IN_SECONDS ); |
| 449 | $referer = wp_get_referer(); |
| 450 | if ( $referer ) { |
| 451 | $secure = ( 'https' === parse_url( $referer, PHP_URL_SCHEME ) ); |
| 452 | } else { |
| 453 | $secure = false; |
| 454 | } |
| 455 | setcookie( 'wp-postpass_' . COOKIEHASH, $hasher->HashPassword( wp_unslash( $_POST['post_password'] ) ), $expire, COOKIEPATH, COOKIE_DOMAIN, $secure ); |
| 456 | |
| 457 | wp_safe_redirect( wp_get_referer() ); |