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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 |
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1820 |
|
1821 | /** |
1822 | * Filters the description for a post type archive. |
1823 | * |
1824 | * @since 4.9.0 |
1825 | * |
1826 | * @param string $description The post type description. |
1827 | * @param WP_Post_Type $post_type_obj The post type object. |
1828 | */ |
1829 | return apply_filters( 'get_the_post_type_description', $description, $post_type_obj ); |
1830 | } |
1831 |
|
1832 | /** |
1833 | * Retrieve archive link content based on predefined or custom code. |
1834 | * |
1835 | * The format can be one of four styles. The 'link' for head element, 'option' |
1836 | * for use in the select element, 'html' for use in list (either ol or ul HTML |
1837 | * elements). Custom content is also supported using the before and after |
1838 | * parameters. |