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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 |
|---|---|
| 442 | |
| 443 | /** |
| 444 | * wp_logout() - Log the current user out |
| 445 | * @since 2.5 |
| 446 | * |
| 447 | */ |
| 448 | if ( !function_exists('wp_logout') ) : |
| 449 | function wp_logout() { |
| 450 | wp_clear_auth_cookie(); |
| 451 | do_action('wp_logout'); |
| 452 | } |
| 453 | endif; |
| 454 | |
| 455 | if ( !function_exists('wp_validate_auth_cookie') ) : |
| 456 | /** |
| 457 | * wp_validate_auth_cookie() - Validates authentication cookie |
| 458 | * |
| 459 | * The checks include making sure that the authentication cookie |
| 460 | * is set and pulling in the contents (if $cookie is not used). |