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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 1989 | if ( ! $uid ) { |
| 1990 | /** |
| 1991 | * Filters whether the user who generated the nonce is logged out. |
| 1992 | * |
| 1993 | * @since 3.5.0 |
| 1994 | * |
| 1995 | * @param int $uid ID of the nonce-owning user. |
| 1996 | * @param string $action The nonce action. |
| 1997 | */ |
| 1998 | $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); |
| 1999 | } |
| 2000 | |
| 2001 | if ( empty( $nonce ) ) { |
| 2002 | return false; |
| 2003 | } |
| 2004 | |
| 2005 | $token = wp_get_session_token(); |
| 2006 | $i = wp_nonce_tick(); |
| 2007 | |
| Line | Code |
| 2044 | * |
| 2045 | * @param string|int $action Scalar value to add context to the nonce. |
| 2046 | * @return string The token. |
| 2047 | */ |
| 2048 | function wp_create_nonce($action = -1) { |
| 2049 | $user = wp_get_current_user(); |
| 2050 | $uid = (int) $user->ID; |
| 2051 | if ( ! $uid ) { |
| 2052 | /** This filter is documented in wp-includes/pluggable.php */ |
| 2053 | $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); |
| 2054 | } |
| 2055 | |
| 2056 | $token = wp_get_session_token(); |
| 2057 | $i = wp_nonce_tick(); |
| 2058 | |
| 2059 | return substr( wp_hash( $i . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); |
| 2060 | } |
| 2061 | endif; |
| 2062 | |