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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 |
|---|---|
| 2197 | if ( ! $uid ) { |
| 2198 | /** |
| 2199 | * Filters whether the user who generated the nonce is logged out. |
| 2200 | * |
| 2201 | * @since 3.5.0 |
| 2202 | * |
| 2203 | * @param int $uid ID of the nonce-owning user. |
| 2204 | * @param string $action The nonce action. |
| 2205 | */ |
| 2206 | $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); |
| 2207 | } |
| 2208 | |
| 2209 | if ( empty( $nonce ) ) { |
| 2210 | return false; |
| 2211 | } |
| 2212 | |
| 2213 | $token = wp_get_session_token(); |
| 2214 | $i = wp_nonce_tick(); |
| 2215 | |
| Line | Code |
| 2252 | * |
| 2253 | * @param string|int $action Scalar value to add context to the nonce. |
| 2254 | * @return string The token. |
| 2255 | */ |
| 2256 | function wp_create_nonce( $action = -1 ) { |
| 2257 | $user = wp_get_current_user(); |
| 2258 | $uid = (int) $user->ID; |
| 2259 | if ( ! $uid ) { |
| 2260 | /** This filter is documented in wp-includes/pluggable.php */ |
| 2261 | $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); |
| 2262 | } |
| 2263 | |
| 2264 | $token = wp_get_session_token(); |
| 2265 | $i = wp_nonce_tick(); |
| 2266 | |
| 2267 | return substr( wp_hash( $i . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); |
| 2268 | } |
| 2269 | endif; |
| 2270 | |