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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 |
|---|---|
| 1910 | * Fires when nonce verification fails. |
| 1911 | * |
| 1912 | * @since 4.4.0 |
| 1913 | * |
| 1914 | * @param string $nonce The invalid nonce. |
| 1915 | * @param string|int $action The nonce action. |
| 1916 | * @param WP_User $user The current user object. |
| 1917 | * @param string $token The user's session token. |
| 1918 | */ |
| 1919 | do_action( 'wp_verify_nonce_failed', $nonce, $action, $user, $token ); |
| 1920 | |
| 1921 | // Invalid nonce |
| 1922 | return false; |
| 1923 | } |
| 1924 | endif; |
| 1925 | |
| 1926 | if ( !function_exists('wp_create_nonce') ) : |
| 1927 | /** |
| 1928 | * Creates a cryptographic token tied to a specific action, user, user session, |