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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 |
|---|---|
| 2021 | * Fires when nonce verification fails. |
| 2022 | * |
| 2023 | * @since 4.4.0 |
| 2024 | * |
| 2025 | * @param string $nonce The invalid nonce. |
| 2026 | * @param string|int $action The nonce action. |
| 2027 | * @param WP_User $user The current user object. |
| 2028 | * @param string $token The user's session token. |
| 2029 | */ |
| 2030 | do_action( 'wp_verify_nonce_failed', $nonce, $action, $user, $token ); |
| 2031 | |
| 2032 | // Invalid nonce |
| 2033 | return false; |
| 2034 | } |
| 2035 | endif; |
| 2036 | |
| 2037 | if ( !function_exists('wp_create_nonce') ) : |
| 2038 | /** |
| 2039 | * Creates a cryptographic token tied to a specific action, user, user session, |