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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 |
|---|---|
| 1842 | * } |
| 1843 | * @param array $args { |
| 1844 | * The args passed into `wp_update_custom_css_post()` merged with defaults. |
| 1845 | * |
| 1846 | * @type string $css The original CSS passed in to be updated. |
| 1847 | * @type string $preprocessed The original preprocessed CSS passed in to be updated. |
| 1848 | * @type string $stylesheet The stylesheet (theme) being updated. |
| 1849 | * } |
| 1850 | */ |
| 1851 | $data = apply_filters( 'update_custom_css_data', $data, array_merge( $args, compact( 'css' ) ) ); |
| 1852 | |
| 1853 | $post_data = array( |
| 1854 | 'post_title' => $args['stylesheet'], |
| 1855 | 'post_name' => sanitize_title( $args['stylesheet'] ), |
| 1856 | 'post_type' => 'custom_css', |
| 1857 | 'post_status' => 'publish', |
| 1858 | 'post_content' => $data['css'], |
| 1859 | 'post_content_filtered' => $data['preprocessed'], |
| 1860 | ); |