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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 |
|---|---|
| 1756 | * limits the password field to 20 characters regardless of the value of the |
| 1757 | * size attribute in the form input. |
| 1758 | * |
| 1759 | * @since 2.7.0 |
| 1760 | * @since 5.8.0 Added the `$post` parameter. |
| 1761 | * |
| 1762 | * @param string $output The password form HTML output. |
| 1763 | * @param WP_Post $post Post object. |
| 1764 | */ |
| 1765 | return apply_filters( 'the_password_form', $output, $post ); |
| 1766 | } |
| 1767 | |
| 1768 | /** |
| 1769 | * Determines whether the current post uses a page template. |
| 1770 | * |
| 1771 | * This template tag allows you to determine if you are in a page template. |
| 1772 | * You can optionally provide a template filename or array of template filenames |
| 1773 | * and then the check will be specific to that template. |
| 1774 | * |