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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 |
|---|---|
| 2138 | if ( ! $uid ) { |
| 2139 | /** |
| 2140 | * Filters whether the user who generated the nonce is logged out. |
| 2141 | * |
| 2142 | * @since 3.5.0 |
| 2143 | * |
| 2144 | * @param int $uid ID of the nonce-owning user. |
| 2145 | * @param string $action The nonce action. |
| 2146 | */ |
| 2147 | $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); |
| 2148 | } |
| 2149 | |
| 2150 | if ( empty( $nonce ) ) { |
| 2151 | return false; |
| 2152 | } |
| 2153 | |
| 2154 | $token = wp_get_session_token(); |
| 2155 | $i = wp_nonce_tick(); |
| 2156 | |
| Line | Code |
| 2193 | * |
| 2194 | * @param string|int $action Scalar value to add context to the nonce. |
| 2195 | * @return string The token. |
| 2196 | */ |
| 2197 | function wp_create_nonce( $action = -1 ) { |
| 2198 | $user = wp_get_current_user(); |
| 2199 | $uid = (int) $user->ID; |
| 2200 | if ( ! $uid ) { |
| 2201 | /** This filter is documented in wp-includes/pluggable.php */ |
| 2202 | $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); |
| 2203 | } |
| 2204 | |
| 2205 | $token = wp_get_session_token(); |
| 2206 | $i = wp_nonce_tick(); |
| 2207 | |
| 2208 | return substr( wp_hash( $i . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); |
| 2209 | } |
| 2210 | endif; |
| 2211 | |