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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 |
|---|---|
| 554 | * Default is all public taxonomies registered to the post type. |
| 555 | * |
| 556 | * @since 6.1.0 |
| 557 | * |
| 558 | * @param string[] $taxonomies List of all taxonomy names to generate classes for. |
| 559 | * @param int $post_id The post ID. |
| 560 | * @param string[] $classes An array of post class names. |
| 561 | * @param string[] $class An array of additional class names added to the post. |
| 562 | */ |
| 563 | $taxonomies = apply_filters( 'post_class_taxonomies', $taxonomies, $post->ID, $classes, $class ); |
| 564 | |
| 565 | foreach ( (array) $taxonomies as $taxonomy ) { |
| 566 | if ( is_object_in_taxonomy( $post->post_type, $taxonomy ) ) { |
| 567 | foreach ( (array) get_the_terms( $post->ID, $taxonomy ) as $term ) { |
| 568 | if ( empty( $term->slug ) ) { |
| 569 | continue; |
| 570 | } |
| 571 | |
| 572 | $term_class = sanitize_html_class( $term->slug, $term->term_id ); |